Готові списки джерел за темами / Thermomechanical Analysi

Добірка наукової літератури з теми "Thermomechanical Analysi"

Автор: Grafiati
Опубліковано: 14 березня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Зміст

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Thermomechanical Analysi".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Thermomechanical Analysi"

1

Skubisz, Piotr, Marek Packo, Katarzyna Mordalska, and Tadeusz Skowronek. "Effect of High Strain-Rate Thermomechanical Processing on Microstructure and Mechanical Properties of Ti-10V-2Fe-3Al Alloy." Advanced Materials Research 845 (December 2013): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amr.845.96.

Повний текст джерела
Анотація:
Results of beta forging of titanium alloy Ti-10V-2Fe-3Al and subsequent thermal treatment are presented, with analysis of the effect of the processing route on the final mechanical properties, correlated with microstructure of thermomechanically processed material. Investigation of response to high strain-rate hot-forging of microstructure and mechanical properties is focused on the effect of the strengthening mechanisms in the material after two common manners of deformation typical of that alloy. The effect of deformation conditions on final microstructure and mechanical properties was analyzed in three crucial stages of thermomechanical processing, e.i. after deformation, quenching and aging. In result, conclusions were formulated as for processing conditions promoting high strength and/or ductility.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Nava, Marcelo, Pedro Cunha de Lima, and Emmanuel Pacheco Rocha Lima. "Influence of the Deep Cryogenic Treatment at the Phase Transformation Temperatures and at the Stabilization of the Cu-14Al-4Ni SMA Alloy." Materials Science Forum 1012 (October 2020): 331–36. http://dx.doi.org/10.4028/www.scientific.net/msf.1012.331.

Повний текст джерела
Анотація:
Deep cryogenic treatment (DCT) is industrially applied to improve the wear resistance characteristics of tool steels. However, on non-ferrous metals, the knowledge about the obtained characteristics after DCT is limited. The purpose of this work was to investigate how DCT affects the properties and the behavior of the Cu-14Al-4Ni alloy treated at different times and after thermomechanical cycling was performed. In the present investigation, there was performed a comparative experimental analysis of the transformation temperatures, microhardness and shape recovery capacity of the alloy obtained by smelting, treated by DCT and thermomechanically cycled. The DCT provided the stabilization of the martensitic phase β'1 and, consequently, the stabilization of the phase transformation temperatures and the shape recovery capacity of the shape memory effect of the alloy, increasing the alloy life.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Shim, Kyu-Sang, Soram Oh, KeeYeon Kum, Yu-Chan Kim, Kwang-Koo Jee, and Seok Woo Chang. "Mechanical and Metallurgical Properties of Various Nickel-Titanium Rotary Instruments." BioMed Research International 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/4528601.

Повний текст джерела
Анотація:
The aim of this study was to investigate the effect of thermomechanical treatment on mechanical and metallurgical properties of nickel-titanium (NiTi) rotary instruments. Eight kinds of NiTi rotary instruments with sizes of ISO #25 were selected: ProFile, K3, and One Shape for the conventional alloy; ProTaper NEXT, Reciproc, and WaveOne for the M-wire alloy; HyFlex CM for the controlled memory- (CM-) wire; and TF for the R-phase alloy. Torsional fracture and cyclic fatigue fracture tests were performed. Products underwent a differential scanning calorimetry (DSC) analysis. The CM-wire and R-phase groups had the lowest elastic modulus, followed by the M-wire group. The maximum torque of the M-wire instrument was comparable to that of a conventional instrument, while those of the CM-wire and R-phase instruments were lower. The angular displacement at failure (ADF) for the CM-wire and R-phase instruments was higher than that of conventional instruments, and ADF of the M-wire instruments was lower. The cyclic fatigue resistance of the thermomechanically treated NiTi instruments was higher. DSC plots revealed that NiTi instruments made with the conventional alloy were primarily composed of austenite at room temperature; stable martensite and R-phase were found in thermomechanically treated instruments.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Ponomarev, Viktor S., Alexander V. Gerasimov, Sergey V. Ponomarev, and Denis O. Shendalev. "Spacecraft reflectors thermomechanical analysis." EPJ Web of Conferences 82 (2015): 01005. http://dx.doi.org/10.1051/epjconf/20158201005.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Price, D. M. "Modulated-temperature thermomechanical analysis." Journal of Thermal Analysis and Calorimetry 51, no. 1 (January 1998): 231–36. http://dx.doi.org/10.1007/bf02719024.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Price, Duncan M. "Modulated-temperature thermomechanical analysis." Thermochimica Acta 357-358 (August 2000): 23–29. http://dx.doi.org/10.1016/s0040-6031(00)00360-9.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Białowąs, Barbara, and Karol Szymanowski. "Effect of thermomechanical densification of pine wood (Pinus sylvestris L.) on cutting forces and roughness during milling." Annals of WULS, Forestry and Wood Technology 113 (March 31, 2021): 36–42. http://dx.doi.org/10.5604/01.3001.0015.2330.

Повний текст джерела
Анотація:
Effect of thermomechanical densification of pine wood (Pinus sylvestris L.) on cutting forces and roughness during milling. The paper presents the results of research concerning the assessment of machinability of pine wood thermomechanically compacted. The assessment was made on the basis of the cutting forces and surface roughness after the milling process. Selected properties of native and modified wood were examined. Based on the research, it was found that compacted wood is characterized by higher cutting forces during milling. The surface quality after milling was examined and the roughness index Ra values were determined. The research shows that the modified wood is characterized by a lower Ra value both along and across the grain. Statistical analysis showed that the modification had a statistically significant effect on the values of cutting forces and the physical and mechanical properties of the tested wood.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

BRISCHETTO, S., and E. CARRERA. "THERMOMECHANICAL EFFECT IN VIBRATION ANALYSIS OF ONE-LAYERED AND TWO-LAYERED PLATES." International Journal of Applied Mechanics 03, no. 01 (March 2011): 161–85. http://dx.doi.org/10.1142/s1758825111000920.

Повний текст джерела
Анотація:
The free vibration problem of one-layered and two-layered metallic plates is investigated in this work. The thermomechanical effect is evaluated using a fully coupled thermomechanical model. The free frequency values of fully coupled problems are compared to the values of the pure mechanical problems. In pure mechanical models, the displacement is the only primary variable of the problem, while in fully coupled thermomechanical models, the temperature is also considered as a primary variable and the effect of the thermomechanical stiffness is evaluated. The thermoelastic coupling usually provides higher frequencies with respect to the pure mechanical case because it acts like a thermal source, which is proportional to the strain rate, which leads to a bigger global stiffness of the structure. Both thermomechanical and mechanical models are developed in the framework of Carrera's Unified Formulation (CUF). CUF permits several refined two-dimensional theories to be obtained with orders of expansion in the thickness direction, from linear to fourth-order, for both displacements and temperature. Both equivalent single layer and layer-wise approaches are considered for the multilayered plates. The thermomechanical effect is investigated, in terms of frequencies, for thick and thin one-layered and two-layered plates, and for lower and higher modes. It has mainly been concluded that the thermomechanical coupling: (a) Is correctly determined if both the thermal and mechanical parts are correctly approximated; (b) Is small for each investigated case; (c) Influences the various vibration modes in different ways; and (d) Has a limited dependence on the considered case, but this dependence vanishes if a global coupling is considered. Only fully coupled thermomechanical models allow to analyze this type of problem. The effect of the thermomechanical coupling on higher-order modes can only be investigated using refined two-dimensional theories.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Collins, Jeff T., Jeremy Nudell, Gary Navrotski, Zunping Liu, and Patric Den Hartog. "Establishment of new design criteria for GlidCop® X-ray absorbers." Journal of Synchrotron Radiation 24, no. 2 (February 20, 2017): 402–12. http://dx.doi.org/10.1107/s1600577517001734.

Повний текст джерела
Анотація:
An engineering research program has been conducted at the Advanced Photon Source (APS) in order to determine the thermomechanical conditions that lead to crack formation in GlidCop®, a material commonly used to fabricate X-ray absorbers at X-ray synchrotron facilities. This dispersion-strengthened copper alloy is a proprietary material and detailed technical data of interest to the synchrotron community is limited. The results from the research program have allowed new design criteria to be established for GlidCop® X-ray absorbers based upon the thermomechanically induced fatigue behavior of the material. X-ray power from APS insertion devices was used to expose 30 GlidCop® samples to 10000 thermal loading cycles each under various beam power conditions, and all of the samples were metallurgically examined for crack presence/geometry. In addition, an independent testing facility was hired to measure temperature-dependent mechanical data and uniaxial mechanical fatigue data for numerous GlidCop® samples. Data from these studies support finite element analysis (FEA) simulation and parametric models, allowing the development of a thermal fatigue model and the establishment of new design criteria so that the thermomechanically induced fatigue life of X-ray absorbers may be predicted. It is also demonstrated how the thermal fatigue model can be used as a tool to geometrically optimize X-ray absorber designs.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Osetskyi, Oleksandr, Tetyana Gurina, Anna Poliakova, and Stanislav Sevastianov. "Thermoplastic Analysis of Cluster Crystallization of Cryoprotective Solutions." Problems of Cryobiology and Cryomedicine 31, no. 3 (September 25, 2021): 203–13. http://dx.doi.org/10.15407/cryo31.03.203.

Повний текст джерела
Анотація:
For the first time the possibility of using thermomechanical analysis to construct the fragments of state diagrams of cryoprotective solutions in the zone of glass transition temperatures has been considered. A method for studying cluster crystallization of cryoprotective solutions based on thermomechanical curves has been developed. The parameters of thermomechanical curves of frozen aqueous solutions of dimethyl sulfoxide (DMSO), polyethylene oxide 1500 (PEO-1500), glycerol were analyzed and the relationship between these parameters and the cluster crystallization kinetics for these solutions was established. On the basis of experimentally obtained thermomechanical curves for the frozen solutions of DMSO and PEO-1500 the possibility of formation of clusters of two types has been shown: on the basis of ice and cryoprotective substance microcrystals. Additional experimental data were obtained to construct a complete state diagrams of cryoprotective solutions, which include the existing cluster phase areas.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Thermomechanical Analysi"

1

TERNER, MATHIEU. "Innovative materials for high temperature structural applications: 3rd Generation γ-TiAl fabricated by Electron Beam Melting". Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2527509.

Повний текст джерела
Анотація:
In the aeronautics industry, the propulsion systems stand among the most advanced and critical components. Over the last 50 years, gas turbine aeroengines were subjected to intensive research to increase efficiency and reduce weight, noise and harmful emissions. Together with design optimization, breakthrough in materials science for structural applications triggered the development of the most advanced gas turbine engines. For low temperatures, basically ahead of the combustion section, lightweight Ti alloys are preferred for their good mechanical properties. For high temperatures instead, Ni-based superalloys exhibit outstanding properties up to very high temperatures despite a rather high material’s density. Research have focused on enhancing to the maximum the potential of materials in gas turbine engines. According to the application, the components experience various mechanical and environmental constraints. Special designs, manufacturing process, material compositions and protective coatings have been developed to push the limits of advanced materials. Nowadays, the attention is focused on innovative materials to replace the existing Ti and Ni based alloys leading to substantial benefits. Light weight composite materials in particular were found very attractive to replace some components’ Ti alloys. At higher temperatures, it is of great interest to replace Ni-based superalloys by materials with lower density and/or higher temperatures applications, which in turn would lead to substantial weight reduction and increase efficiency. At the highest temperatures range, in particular in the combustion chamber and high pressure turbine sections, ceramic based materials offer promising balance of properties. Research are dedicated to overcome the drawbacks of ceramics for such structural applications, and in particular their brittle fracture behavior, by addition of reinforcing fibers. At lower temperatures range, TiAl based intermetallics emerged as very promising materials at half the density of Ni-based superalloys. Significant weight reduction could be achieved by the introduction of TiAl based alloys for rotating components of the compressor and low pressure turbine. 2nd generation γ-TiAl alloys were lately introduced in GE’s GEnx and CFM’s LEAP engines. The present work concerns the fabrication by the additive manufacturing technique Electron Beam Melting of 3rd generation γ-TiAl alloys for high temperatures application in gas turbine aeroengines. EBM, building parts layer by layer according to CAD, offers many advantages compared to other manufacturing processes like casting and forging. Reported by Avio, 2nd generation γ-TiAl alloys have been successfully fabricated by EBM. To increase the material’s potential, the production of 3rd generation γ-TiAl alloys Ti-(45-46)Al-2Cr-8Nb was therefore studied. The optimization of the EBM parameters led to high homogeneity and very low post-processing residual porosity ≤ 1%. The fine equiaxed microstructure after EBM could be tailored towards the desired mechanical properties by simple heat treatment, from equiaxed to duplex to fully lamellar. In particular, a duplex microstructure composed by about 80 % lamellar grains pinned at grain boundaries by fine equiaxed grains was obtained after heat treatment slightly over the α transus temperature. The study showed that addition of a higher amount of Nb significantly increased the oxidation resistance of the material, thus increasing the application temperature range of these γ-TiAl alloys.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Le, Gall Carole A. "Thermomechanical stress analysis of flip chip packages." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/16002.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Jiang, Jian. "Nonlinear thermomechanical analysis of structures using OpenSees." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7749.

Повний текст джерела
Анотація:
The behaviour of heated structures is strongly governed by thermal induced deformation and degradation of material properties. This thesis presents an augmentation of the software framework OpenSees to enable thermomechanical analysis of structures. The developments contributed to OpenSees are tested by series of benchmark cases and experimental results. OpenSees is an object-oriented, open source software framework developed at UC Berekeley for providing an advanced computational tool to simulate non-linear response of structural frames to earthquakes. OpenSees was chosen to be extended to enable the modelling of structures in fire. The development of this capability involved creating new thermal load classes to define the temperature distribution in structural members and modifying existing material classes to include temperature dependent properties according to Eurocodes. New functions were also added into the existing corotational beam/column element (2D and 3D) to apply temperature related loads. A new geometrically nonlinear shell element was created (based on the existing linear MITC4 shell element in OpenSees) using total Lagrangian formulation. Appropriate thermal load, material and section classes were also developed for enabling thermomechanical analysis using the nonlinear shell element. A number of benchmark tests were carried out to verify the performance of the new developments implemented in OpenSees. The benchmark tests involved subjecting beams and plates to a range of through depth temperature gradients with OpenSees results compared against closed form solutions. Further verification was also carried out by comparing OpenSees results with ABAQUS results. The extended OpenSees framework was also used to model experiments such as two plane steel frames at elevated temperatures, the Cardington Restrained Beam Test and the Cardington Corner Test and an earthquake damaged reinforced concrete (RC) frame subjected to a subsequent fire. The existing DruckerPrager material class in OpenSees was used to the model concrete in the composite floor in the Cardington tests and in the RC frame. The pinching material available in OpenSees was used to model the beams and columns in the RC frame to consider the cyclic degradation of strength and stiffness during the increasing cyclic displacements imposed on the RC frame before the fire. In all cases the results from OpenSees show good agreement with test data.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

), Lerch Andrew (Andrew J. "Thermomechanical analysis of innovative nuclear fuel pin designs." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/58460.

Повний текст джерела
Анотація:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 152-154).
One way to increase the power of a nuclear reactor is to change the solid cylindrical fuel to Internally and Externally Cooled (I&EC) annular fuel, and adjust the flow and the core inlet coolant temperature. The switch to annular fuel allows for a 20% increase in core power density without changing the assembly size or the control rod placement. Such an approach is being considered for the Korean reactor OPR1400. The analysis of I&EC fuel with a modified version of FRAPCON-3.3 revealed that an uneven heat flux split between the outer and inner surfaces may develop which does not yield an optimal design. After optimization, it is found that excessive cladding oxidation on the inner channel of the hottest fuel pin may occur due to excessive internal heat flux, which is controlled by the gap conductance. As the gaps close asymmetrically, the MDNBR limit of 1.3 could also be violated. At the uprated power, control of the gap sizes is needed in order to satisfy the thermal-hydraulic requirements. One solution is to increase the flow rate to increase the MDNBR and to reduce the coolant temperature to decrease the cladding oxidation. Reduced-moderation Water Reactor (RMWR) is a boiling water reactor proposed to operate with mixed oxide fuel and, a harder neutron spectrum and higher local fuel burnup compared to the traditional Light Water Reactors. The fissile content of the fuel is concentrated in two pancake like regions in the core separated by a blanket (fertile-only) region.
(cont.) The FRAPCON fuel performance code has been modified to assess the behavior of the RMWR fuel pins. Properties were modified to allow for a higher concentration of plutonium oxide. A new mechanistic model was adopted to simulate the fission gas release and swelling behavior of the fuel. The gas bubble swelling at the grain edges and grain faces were modeled separately. In addition, solid fission product swelling model was modified and the effect of axial migration of the volatile fission product behavior on fuel performance was also analyzed. Specifically, the cesium migrates axially based on the evaporation/condensation mechanism. Cesium precipitation at the fuel blanket interface and the resulting excessive swelling of the fuel pin at these locations could potentially be a major source of local stresses. Furthermore, as-fabricated porosity migration, central void formation, and hot-pressing of the fuel pellet were also modeled. Finally, axial variation of the material properties was allowed to represent the active fuel region and the blanket regions. The updated version of FRAPCON (called FRAPCON-EP) was checked against experiments then used to analyze the RMWR fuel behavior to optimize various parameters such the fuel pellet smear density, plenum height, and achievable peak burnup in order to achieve performance that could satisfy the NRC requirements for fuel pins.
by Andrew Lerch.
S.M.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Brevus, Vitaly. "Analysis of structural elements' integrity after thermomechanical loading." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22443.

Повний текст джерела
Анотація:
Cette thèse a été réalisée en cotutelle entre l'Université Technique Nationale Ivan Pul'uj de Ternopil (TNTU, Ukraine) et l’Université Blaise Pascal (Clermont-Ferrand, France). Les travaux ont été effectués au sein de l'Institut Pascal de l’Université Blaise Pascal - Clermont II, de l’IFMA et du CNRS, dans le thème scientifique Matériaux actifs et intelligents, modélisation multi-échelle de l'axe Mécanique, Matériaux et Structures, et au sein de l'Institut Français de Mécanique Avancée. La thèse présentée appartient au domaine scientifique de la mécanique de la rupture et la science des matériaux. L'objectif de la thèse est de développer la méthodologie analytique et expérimentale pour la durée de vie résiduelle des collecteurs du surchauffeur dans les centrales thermiques, en tenant compte des caractéristiques de fonctionnement de chargement thermomécanique. La prédiction de la durée de vie est une tâche cruciale pour un fonctionnement continu des éléments structuraux très chargés et fait partie d'un problème plus large, couvert dans la recherche de la résistance et la durabilité des éléments structurels à haute température dans les équipements d'énergie générateur. Le mémoire décrit l'influence de la température de fonctionnement sur la vitesse de propagation des fissures de fatigue et micromécanismes de rupture dans le matériau du collecteur de surchauffeur
This thesis was performed under the cotutelle agreement between Ternopil Ivan Pul’uj National Technical University (TNTU, Ukraine) and Blaise Pascal University (Clermont Ferrand, France). The thesis was carried out within Pascal Institute of the Blaise Pascal University - Clermont II, the IFMA and the CNRS, in the Scientific Theme “Active and Smart Materials and Multiscale Modeling” of the Mechanics, Materials and Structures Department, and within the French Institute for Advanced Mechanics. The presented thesis belongs to the scientific field of fracture mechanics and material science. The aim of the thesis is to develop the analytical and experimental methodology for the residual lifetime estimation of the superheater collectors at thermal power stations (TPS), taking into account the operational features of thermomechanical loading. Prediction of lifetime is crucial task for continuous operation of heavy loaded structural elements and is a part of a broader problem, covered in the research of the strength and durability of high temperature structural elements in power-generating equipment. The thesis describes the influence of operating temperature on the fatigue crack growth rate and fracture micromechanisms in the material of the superheater collector
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Zhang, Chunbo. "A Thermomechanical Analysis of An Ultrasonic Bonding Mechanism." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1021.

Повний текст джерела
Анотація:
Ultrasonic welding (UW), as a solid-state joining process, uses an ultrasonic energy source (usually with a frequency of 20 kHz or above) to induce oscillating shears between the faying surfaces to produce metallurgical bonds between a wide range of metal sheets [1, 2], thin foils [3], semiconductors [4], plastics [5], glass [6], and ceramics [7]. In contrast to traditional fusion welding processes, ultrasonic welding has several inherent advantages [3,8] derived from its solid-state process characteristics, and has been in use as a versatile joining method in the electronics, automotive, and aerospace industries since the 1950s
Стилі APA, Harvard, Vancouver, ISO та ін.
7

PACHECO, PEDRO MANUEL CALAS LOPES. "ANALYSIS OF THE THERMOMECHANICAL COUPLING IN ELASTIC-VISCOPLASTIC MATERIALS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1994. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33223@1.

Повний текст джерела
Анотація:
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
A modelagem do acoplamento entre os fenômenos mecânicos e térmicos em sólidos inelásticos é considerada neste trabalho. O acoplamento termomecânico é importante em determinadas situações, como por exemplo, no estudo de problemas envolvendo deformações inelásticas cíclicas em estruturas metálicas. Um procedimento sistemático para obtenção de equações constitutivas termodinamicamente admissíveis é apresentado. Através deste procedimento, baseado na Termodinâmica dos Processos Irreversíveis, foi possível obter uma teoria constitutiva para modelar o comportamento anisotérmico de metais e ligas metálicas. Dois tipos de acoplamentos termomecânicos foram identificados: o acoplamento interno, associado à dissipação interna do processo mecânico, e o térmico, associado à dependência dos parâmetros das equações constitutivas com a temperatura. A teoria foi particularizada para materiais elasto-viscoplásticos. Simulações com barras foram realizadas para estudar fenômenos como o aquecimento de metais provocado por solicitações mecânicas complexas e o comportamento de metais submetidos a grandes gradientes de temperatura. Uma variável de dano foi incorporada ao modelo, permitindo estudar a influência do acoplamento termodinâmico em processos de degradação do material como fadiga de baixo ciclo.
The present work is concerned with the modeling of the coupling between mechanical and termal phenomena. The thermomechanical coupling is important in some problems like those involving inelastic cyclic deformation in metallic structures. A systematic procedure to obtain thermodynamically admissible constitutive equations is presented. Such procedure has a strong thermodynamic basis and is used to obtain a constant theory to model the anisothermal behavior of metals and alloys. Two kinds of thermomechanical couplings can be identified: the internal coupling, related with the internal dissipation in the mechanical process and the thermal coupling, related with the dependence of the material parameters in the constitutive equations on temperature. The theory is particularized to elasto-viscoplastic materials. Uniaxial simulations were performed to study the heating of metals due to complex mechanical loadings and the behavior of metals subjected to high temperature gradients. A damage variable is introduced in the model to study the influence of the thermomechanical coupling in processes involving the degradation of the material like in low-cycle fatigue.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Bola, Inês Carlos Ramos Almeida. "Development and numerical thermomechanical analysis of an atmospheric burner." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23416.

Повний текст джерела
Анотація:
Mestrado em Engenharia Mecânica
Atualmente, a simulação numérica de processos tecnológicos tem cada vez mais importância e é cada vez mais utilizada permitindo não só reproduzir as condições de funcionamento de determinado processo como também possibilita a previsão de possíveis falhas nos materiais. Assim, surgiu o presente trabalho para dar resposta à necessidade de conseguir caracterizar comportamentos mecânicos como a uência e a fadiga, presentes na superfície de alumínio de um queimador atmosférico, e o impacto que podem ter. Para tal, através do software de simulação numérica ANSYS, realizou-se uma análise termomecânica da respetiva superfície de queima. Em primeiro lugar, selecionou-se o modelo numérico de Norton e procedeu-se à identi cação dos respetivos parâmetros com base em duas análises distintas: uma análise analítica, com base apenas em curvas experimentais e relações analíticas; e uma análise numérica, com recurso ao módulo de otimização do ANSYS, em que os parâmetros foram iterativamente de nidos. Posteriormente, as condições fronteiras do problema foram de nidas e foi realizado um estudo de convergência da malha a usar nas simulações. Deste modo, foram obtidos os per s de temperatura, tensão e deformação ao longo da superfície de queima. Por m, considerando os fenómenos de fadiga e de uência, o tempo de vida da superfície do queimador foi estimado com base em métodos de previsão.
Nowadays, the numerical simulation of technological processes is increasingly important and used, allowing to reproduce the operation conditions of a given process and to predict possible failures in materials. Thereby, the present work emerged, to answer the need to characterize mechanical behaviors such as creep and fatigue that are present on the aluminum surface of an atmospheric burner and to understand the impact they can have. For this purpose, the FEA program ANSYS was used to perform a thermomechanical analysis of the respective surface. Firstly, the Norton's numerical model was selected, and the respective parameters were identi ed based on two di erent analyses: an analytical analysis, based only on experimental curves and analytical relationships; and a numerical analysis using the ANSYS optimization module, in which the parameters were iteratively de ned. Then, the boundary conditions of the problem were de ned, and a mesh sensitivity study was carried out. Therefore, the temperature, stress and strain pro les were obtained along the surface. Considering the fatigue and creep phenomena, the lifetime of the burner surface was estimated based on prediction methods.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Arqam, Mohammad. "Thermomechanical analysis of compact high-performance electric swashplate compressor." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/410159.

Повний текст джерела
Анотація:
This PhD is sponsored by industry and is part of a project to develop and manufacture smart electric compressor for mobile refrigeration and air conditioning applications on commercial and heavy vehicles including industrial machinery. Compact electric compressors are of great value for the future due to the growth of the electric vehicle market. Recent advancements in the field of mobile air conditioning and refrigeration have witnessed extensive use of the swashplate compressor due to its compact structure, continuous operation, small size, light weight and better thermal comfort inside the vehicle. The design of the swashplate compressor is complex so that it requires considerable contributions from different fields of engineering viz. engineering mechanics, heat transfer and fluid dynamics. The estimate of compressor performance through modelling and experiments at the early stages of design and development serves as a useful tool for the designer. The input power, torque, in-cylinder gas pressure and temperature, flow through valves, and volumetric efficiency are important parameters to characterize the compressor performance. In this thesis, a set of practical thermomechanical models are derived and validated against experiments. An ideal gas based analytical model is developed for a 10 cylinder swashplate compressor with a view to predict its performance in terms of shaft torque and mass flow rate for a given rotational speed requiring minimal computational effort to run. Three sub-models are developed to account for the piston and swashplate kinematics and dynamics through deriving expressions for piston displacement as an explicit function of angle of rotation of swashplate and interactions between forces and moments. The compression process model is formulated to predict in-cylinder temperatures and pressures during one revolution of the swashplate together with refrigerant mass flow rate in and out of the compressor. A complete time-varying model is then developed by combining above three sub-models. Results are obtained in terms of compressor torque and volumetric efficiency and agree well with experiments. Considering the importance of refrigerant flow through reed valves affecting compressor performance, a real-gas, restricted-flow valve model is also developed and compared with the ideal-gas, ideal-valve model. Real gas properties of R134a are evaluated using NIST standard reference database. A minor-loss discharge coefficient approach is used to determine the refrigerant flow rate through reed valves. The model predicts the discharge temperature, refrigerant mass flow rate and volumetric efficiency accurately as a function of rotational speed. The effect of real gas properties, heat transfer to and from the compressor wall during compression and expansion and the valve model are analyzed. The suction side valve model is found to have the largest influence on the compressor performance as a function of rpm whereas heat transfer model has the least. The key contribution of this study is in assembling a practical combination of models that is capable of capturing the essential physics without being overly complex. To the authors’ knowledge this is the first swashplate study that shows clearly the cyclic variation in thermo-physical properties. The literature shows the dynamic characteristics of the compressor are well connected with the start-up transients of the swashplate mechanism and the suction and discharge pressures. To evaluate this, an experimentally validated transient swashplate compressor model is developed including mass moment of inertia of the pistons and swashplate to evaluate the motor torque loading during compressor start-up. The effects of essential parameters such as moment of inertia, bearing torque, viscous resistance to the piston motion, suction and discharge pressures on the compressor performance are presented. The actual start-up behavior is tracked using a high-speed data logger capturing phase currents for the BLDC motor, instantaneous power and rotational speed. The suction and discharge pressures are found to have the largest influence on the starting torque whereas rotational mass moment of inertia has the least. The original contribution of this work is in deriving a transient swashplate compressor model that includes the mass moment of inertia of the swashplate mechanism and clarifying the relative importance of line pressures, viscous losses and bearing resistance on the start-up torque. Since minimizing the size of the compact Brushless DC (BLDC) motor driving the compressor is important, it is worth optimizing the cooling performance of the electric motor. An experimentally validated computational fluid dynamics (CFD) model is developed to investigate the thermal performance of an air-cooled Brushless Direct Current (BLDC) motor driving swashplate compressor. Different fin arrangements on the motor housing are analysed including small protrusions on the fin surface. The findings show greater enhancements can be achieved by adding an extra fin in the cooling flow passage rather than through the inclusion of grooved walls. Thermographs of the motor housing are found to be in close agreement with the model predictions. The key achievement of this thermal investigation is in demonstrating air-cooling is a practical and effective alternative to refrigerant cooling of compact high performance electric swashplate compressors for mobile refrigeration and air conditioning applications. The effect of thermal resistance between the windings and stator core of an air-cooled Brushless DC motor is also investigated. Measurements are found to be in close agreement with predictions. The numerical simulations suggest significant benefits of injecting encapsulation material in the stator core to enhance heat transmission from windings to the surrounding electrical steel. To confirm this, an experimental investigation is carried out by adding thermal resin to the winding slots on 2.5 kW and 4 kW brushless DC motors. The findings show that the potting material can reduce the temperature of the windings by 10 °C to 20 °C for electrical power inputs of 2.4 kW to 3.8 kW. The winding temperature is also found to be sensitive to the winding arrangement in the stator slot. With tighter, more compact windings also leading to significant temperature reductions.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Eng & Built Env
Science, Environment, Engineering and Technology
Full Text
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Ismail, Dahman, and Alexis Andrei. "Thermomechanical stress analysis of the main insulation system of traction electrical machines." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20305.

Повний текст джерела
Анотація:
More efficiency heavy-duty vehicles are developed with higher range, updated electronic and mechanical parts. The fuel efficiency and pollution of carbon dioxide need to be lower to achieve new EU regulations. The global population increases with an increased number of heavy-duty vehicles. This, in turn, increases the emission. By taking the electrical and mechanical parts to the next step, the global emission problems can be massively reduced. Electrical machines are the next step towards a cleaner future. The main goal of this study to investigate the electrical machine’s insulation system. Thermo-mechanical stresses due to thermal cycling affect the electrical machines and its sub-components. By using a FEM application with simplified models of the electrical machine, results are obtained and discussed. Specifically, if 2D-models are sufficient enough to represent a 3D-model. How good different 2D-models can represent the 3D-model is compared and discussed in this study. A physical experimental analysis is done to verify and calibrate the FE-models. Which one of the less frequent higher amplitude or more frequent, lower amplitude thermal cycling affects the insulation system most is determined. The simulations could be done with either, coupled-temperature displacement analysis or sequentially coupled analysis. Coupled-temperature displacement is the fastest method to use in the simulation models. A 3D-model is the best way to describe an object and is therefore implemented. Two additional 2D-models are developed for faster computation and to investigate if the models can represent the three-dimensional geometry. All the models have specific boundary conditions to make the models more simplified. Sensitivity studies have been done to determine which parameter affects the induced thermo-mechanical stresses the most. A physical experimental setup is also implemented to validate and calibrate the simulation model. The result of the 3D-model is most accurate when simulating a three-dimensional object. Simulation results have shown that epoxy, one of the main components in the insulation system, is most critical in terms of reaching breakdown first, followed by paper insulation and copper coating. This is a typical result of all three simulation models. Whereas it is concluded that some 2D-models can present the 3D-model, others can’t. The dependent factor is the different cross-section of the electrical machine. The physical experiment shows similar results between simulation in terms of strain at a lower temperature, and the deviation gets larger as the temperature increases. The 3D-model is the model that has the best representation of a real electrical machine as it accounts for all the normal and shear stress components in all directions, but also because it has better boundary conditions compared to the 2D-models. The 2D-model in XY-plane has shown similar results to the 3D-model. One of the main insulation system components, epoxy, is exposed to the highest stresses compared to its yield and ultimate strength, followed by the paper insulation and copper coating. The sensitivity study has concluded that the axial length of the stator does not affect the stress amplitudes. The most critical parameter that affects the thermo-mechanical stresses is the temperature amplitude, the materials CTE and the thickness of the jointed layer. All maximum stress amplitudes of all the components are located at the free end.
Mer effektiva tunga fordon utvecklas med högre räckvidd, uppdaterade elektroniska och mekaniska delar. Bränsleeffektiviteten och föroreningen av koldioxid måste vara lägre för att uppnå nya EU-förordningar. Antalet tunga fordon ökar i takt med att den globala befolkningen ökar, detta leder i sin tur till ökad utsläpp av bland annat koldioxid. Genom att ta de elektriska och mekaniska delarna till nästa steg kan de globala utsläppsproblemen minskas massivt. Elektriska maskiner för framdrivning är nästa steg mot en renare framtid. Studiens huvudmål för att undersöka den elektriska maskinens isoleringssystem. Termomekaniska påfrestningar på grund av termisk cykling påverkar de elektriska maskinerna och dess delkomponenter. Genom att använda en FEM-applikation med förenklade modeller av den elektriska maskinen erhålls och diskuteras resultat. Specifikt om 2D-modeller är tillräckliga för att representera en 3D-modell. Hur tillräckligt de olika 2D-modeller kan representera 3D-modellen jämförs och diskuteras i denna studie. Ett fysiskt experiment utförs för att validera och kalibrera FEA-modellerna. Vilken av de mindre frekventa cykler med högre amplitud eller mer frekventa cyckler med lägre amplitud påverkar isoleringssystemet mest har undersökts. Simuleringarna kan göras med antingen, temperatur kopplad förskjutnings analys eller sekventiellt kopplad analys. Temperatur kopplad kopplad förskjutning är den snabbaste metoden att använda i simuleringsmodellerna. En 3D-modell är det bästa sättet att beskriva ett objekt och har därför implementerats. Ytterligare två, 2Dmodeller är framtagna i FEM-miljö för snabbare beräkning och för att undersöka om 2D-modellerna kan representera den tredimensionella geometrin. Samtliga tre modeller har specifika randvillkor för att förenkla modellerna. Känslighetsstudier görs för att bestämma vilken parameter som påverkar de inducerade termomekaniska spänningarna mest. Ett fysiskt experiment har utförsts för att validera och kalibrera simuleringsmodellerna. Resultatet visar att 3D-modellen representerar ett tre dimensonellt objekt bäst. Simuleringsresultat har visat att epoxy, som är en av huvudkomponenterna i isoleringssystemet, är mest kritisk när det gäller att först nå brott- och sträckgräns, följt av pappersisolering och koppar beläggningen. Detta är ett typiskt resultat av alla tre simuleringsmodeller. Slutsatsen visar att vissa 2D-modeller kan presentera 3D-modellen, andra kan inte. Den beroende faktorn beror på ur vilket tvärsnitt man tittar på den elektriska maskinen. Det fysiska experimentet visar liknande resultat jämfört med simuleringen när det gäller belastning vid en lägre temperatur, och avvikelsen blir större när temperaturen ökar. 3D-modellen, är den modell som har den bästa representationen av en riktig elektrisk maskin eftersom den inkluderar normal- och skjuvspänningskomponenter i alla riktningar. Anledningen är att den har bättre randvillkor jämfört med 2Dmodellerna. 2D-modellen i XY-planet har visat liknande resultat som 3D-modellen. En av huvudkomponenterna i isoleringssystemet, epoxy, utsätts för de högsta spänningarna jämfört med dess sträck- och den brottgräns, följt av pappersisolering och koppar beläggning. Känslighetsstudien har kommit fram till att statorns axiella längd inte påverkar spänningsamplituderna. Den mest kritiska parametern som påverkar de termomekaniska spänningarna är temperatur amplituden, materialens CTE och tjockleken på det skarvade skiktet. Alla maximala spänningsamplituder för samtliga tre komponenter är belägna i den fria änden.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Книги з теми "Thermomechanical Analysi"

1

Non-smooth thermomechanics. Berlin: Springer, 2002.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Coleman, Bernard D., Martin Feinberg, and James Serrin. Analysis and Thermomechanics. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Frémond, Michel. Non-Smooth Thermomechanics. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Riga, AT, and MC Neag, eds. Materials Characterization by Thermomechanical Analysis. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1991. http://dx.doi.org/10.1520/stp1136-eb.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

T, Riga Alan, Neag C. Michael, and ASTM Committee E-37 on Thermal Measurements., eds. Materials characterization by thermomechanical analysis. Philadelphia, PA: ASTM, 1991.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Finite element analysis: Thermomechanics of solids. 2nd ed. Boca Raton, FL: CRC Press, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Nicholson, D. W. Finite element analysis: Thermomechanics of solids. 2nd ed. Boca Raton: CRC Press, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Nicholson, D. W. Finite element analysis: Thermomechanics of solids. 2nd ed. Boca Raton: CRC Press, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

M, Mirdamadi, and Langley Research Center, eds. Analysis of thermomechanical fatigue of unidirectional titanium metal matrix composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1991.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

M, Mirdamadi, and Langley Research Center, eds. Analysis of the thermomechanical fatigue of unidirectional titanium metal matrix composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1991.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Thermomechanical Analysi"

1

Gooch, Jan W. "Thermomechanical Analysis." In Encyclopedic Dictionary of Polymers, 745. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11793.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Wagner, Matthias. "Thermomechanical Analysis." In Thermal Analysis in Practice, 187–209. München: Carl Hanser Verlag GmbH & Co. KG, 2017. http://dx.doi.org/10.3139/9781569906446.011.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Meyghani, Bahman, and Mokhtar Awang. "Thermomechanical Analysis." In Welding Simulations Using ABAQUS, 5–6. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1320-4_2.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Brown, Michael E. "Thermomechanical analysis (TMA)." In Introduction to Thermal Analysis, 63–68. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1219-9_7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Ehrenstein, Gottfried W., Gabriela Riedel, and Pia Trawiel. "Thermomechanical Analysis (TMA)." In Thermal Analysis of Plastics, 172–208. München: Carl Hanser Verlag GmbH & Co. KG, 2004. http://dx.doi.org/10.3139/9783446434141.004.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Day, W. A. "On the Failure of the Maximum Principle in Coupled Thermoelasticity." In Analysis and Thermomechanics, 1–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6_1.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

MacCamy, R. C., and Ernst Stephan. "A Skin Effect Approximation for Eddy Current Problems." In Analysis and Thermomechanics, 175–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6_10.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Wyler, Oswald. "Algebraic Theories for Continuous Semilattices." In Analysis and Thermomechanics, 187–201. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6_11.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Šilhavý, Miroslav. "The Existence of the Flux Vector and the Divergence Theorem for General Cauchy Fluxes." In Analysis and Thermomechanics, 203–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6_12.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Marris, A. W. "Isochoric Circulation-Preserving Motions with Stream-Lines of a Potential Motion." In Analysis and Thermomechanics, 221–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61598-6_13.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Thermomechanical Analysi"

1

Pryputniewicz, Ryszard J. (Rich), and Dariusz R. Pryputniewicz. "Thermomechanical Effects in Packaging: Matching CTE or Not?" In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15517.

Повний текст джерела
Анотація:
Development of effective packages for microelectronics, MEMS, as well as for other microsystems and advanced modern devices, is usually based on minimization of thermomechanical effects and maximization of the useful life of a package. Such extremization-analysis depends on the effects that coefficients of thermal expansion (CTEs) have on the design of packages. This paper examines thermomechanics of a package and evaluates the effects that matching (or not) of CTEs may have on a package and its life. This examination is illustrated with representative examples.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Benson, Michael, David Rudland, and Mark Kirk. "Thermomechanical Analysis of Pressure Vessels." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78229.

Повний текст джерела
Анотація:
Regulatory Guide (RG) 1.161 and American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, Nonmandatory Appendix K contain stress intensity factor (SIF) equations for both the internal pressure and thermal gradient loading cases. However, the technical basis behind these equations was developed only for Ri/t = 10, were Ri is the inner vessel radius and t is the vessel thickness. While this geometry is appropriate for most pressurized water reactors (PWR), most boiling water reactor (BWR) vessels have Ri/t = 20. This paper explores the validity of applying these SIF equations to BWRs. This confirmatory work includes calculating SIF by independent methods. The one-dimensional heat equation is solved to provide a physical basis for the thermal stresses.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Thuresson, Daniel. "Thermomechanical Analysis of Friction Brakes." In 18th Annual Brake Colloquium And Engineering Display. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2775.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Vala, J., S. Št’astník, V. Kozák, Theodore E. Simos, George Psihoyios, and Ch Tsitouras. "Computational Thermomechanical Modelling of Early-Age Silicate Composites." In NUMERICAL ANALYSIS AND APPLIED MATHEMATICS: International Conference on Numerical Analysis and Applied Mathematics 2009: Volume 1 and Volume 2. AIP, 2009. http://dx.doi.org/10.1063/1.3241435.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Cragun, Rebecca, and Larry L. Howell. "Linear Thermomechanical Microactuators." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0265.

Повний текст джерела
Анотація:
Abstract Thermomechanical in-plane microactuators (TIMs) have been designed, modeled, fabricated, and tested. TIMs offer an alternative to arrays of smaller thermal actuators to obtain high output forces. The design is easily modified to obtain the desired output force or deflection for specific applications. The operational principle is based on the symmetrical thermal expansion of variable cross sections of the surface micromachined microdevice. Sixteen configurations of TIMs were fabricated of polysilicon. Finite element analysis models were used to predict the deflection and output force for the actuators. Experimental results were also recorded for all sixteen configurations, including deflections and output forces up to 20 micron and 35 dyne.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Zhang, Ch, A. Ekhlakov, O. Khay, X. W. Gao, J. Sladek, V. Sladek, Jane W. Z. Lu, Andrew Y. T. Leung, Vai Pan Iu, and Kai Meng Mok. "Thermomechanical Analysis of Functionally Graded Materials." In PROCEEDINGS OF THE 2ND INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL MECHANICS AND THE 12TH INTERNATIONAL CONFERENCE ON THE ENHANCEMENT AND PROMOTION OF COMPUTATIONAL METHODS IN ENGINEERING AND SCIENCE. AIP, 2010. http://dx.doi.org/10.1063/1.3452305.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Mach, Pavel, David Busek, and Radek Polansky. "Thermomechanical analysis of electrically conductive adhesives." In 2010 3rd Electronic System-Integration Technology Conference (ESTC). IEEE, 2010. http://dx.doi.org/10.1109/estc.2010.5642859.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Cura`, Francesca, Graziano Curti, and Raffaella Sesana. "Thermomechanical Model and Experimental Analysis of Progressive Fatigue Damage in Steel Specimens." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95114.

Повний текст джерела
Анотація:
This paper presents a thermomechanical model to predict the surface temperature evolution of a specimen during a fatigue test. In particular, the aim of this theoretical approach is to evaluate the amount of accumulated fatigue damage in the material, on the basis of its temperature growth indicated as damage parameter. To do that, a thermomechanical model has been developed and applied to a unidimensional steel specimen, with rectangular cross-section, fatigued by alternate axial stresses. Temperature variation along the thickness of the specimen has been disregarded. Thermomechanical differential equation has been integrated by applying both initial and boundary conditions. Temperature evolution of steel specimens measured during fatigue tests by means of thermographic techniques has been compared to the corresponding predicted by the theoretical model.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

AVERILL, R., and J. REDDY. "THERMOMECHANICAL POSTBUCKLING ANALYSIS OF LAMINATED COMPOSITE SHELLS." In 34th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-1337.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Carlson, Frederick M., Taipao Lee, John C. Moosbrugger, and David J. Larson, Jr. "Thermomechanical analysis in directional solidification of CdTe." In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Narayanan Ramachandran. SPIE, 1996. http://dx.doi.org/10.1117/12.244328.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "Thermomechanical Analysi"

1

Adams, Jillian Cathleen. Thermomechanical Analysis (TMA) and its application to polymer systems. Office of Scientific and Technical Information (OSTI), May 2016. http://dx.doi.org/10.2172/1254935.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Naatz, Lauren Catherine. Literature Review of Thermomechanical Analysis, Its Instrument Components and Applications. Office of Scientific and Technical Information (OSTI), June 2020. http://dx.doi.org/10.2172/1633564.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Naatz, Lauren Catherine. Literature Review of Thermomechanical Analysis, Its Instrument Components and Applications. Office of Scientific and Technical Information (OSTI), June 2020. http://dx.doi.org/10.2172/1633565.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Bauer, S. J., L. S. Costin, and J. F. Holland. Preliminary analyses in support of in situ thermomechanical investigations. Office of Scientific and Technical Information (OSTI), December 1988. http://dx.doi.org/10.2172/137488.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Underwood, J. H., P. J. Cote, and G. N. Vigilante. Thermomechanical and Fracture Analysis of Silicon Carbide in Cannon Bore Applications. Fort Belvoir, VA: Defense Technical Information Center, June 2003. http://dx.doi.org/10.21236/ada416282.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Cheng, Yi-Wen, and Christian L. Sargent. Data-reduction and analysis procedures used in NIST's thermomechanical processing research. Gaithersburg, MD: National Institute of Standards and Technology, 1990. http://dx.doi.org/10.6028/nist.ir.3950.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Blanchard, J. P., and N. M. Ghoniem. Thermomechanical analysis of solid breeders in sphere-pac, plate, and pellet configurations. Office of Scientific and Technical Information (OSTI), February 1986. http://dx.doi.org/10.2172/5550845.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Butkovich, T. R., and W. C. Patrick. Post-test thermomechanical calculations and preliminary data analysis for the Spent Fuel Test: Climax. Office of Scientific and Technical Information (OSTI), September 1985. http://dx.doi.org/10.2172/59990.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Armero, Francisco. Analysis and Numerical Simulation of Strain Localization in Inelastic Solids Under Fully Coupled Thermomechanical and Poroplastic Conditions. Fort Belvoir, VA: Defense Technical Information Center, August 2000. http://dx.doi.org/10.21236/ada380940.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Costin, L. S., and E. P. Chen. An analysis of the G-Tunnel heated block thermomechanical response using a compliant-joint rock-mass model; Yucca Mountain Project. Office of Scientific and Technical Information (OSTI), December 1988. http://dx.doi.org/10.2172/137504.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Thermomechanical Analysi" для конкретних типів джерел:
Статті в журналах Дисертації Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії