Relevant bibliographies by topics / Viscoplastic modeling

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Viscoplastic modeling'

Author: Grafiati
Published: 18 May 2024

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Journal articles on the topic "Viscoplastic modeling"

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Zhang, Yuqing, Fan Gu, Bjorn Birgisson, and Robert L. Lytton. "Viscoelasticplastic–Fracture Modeling of Asphalt Mixtures Under Monotonic and Repeated Loads." Transportation Research Record: Journal of the Transportation Research Board 2631, no. 1 (January 2017): 20–29. http://dx.doi.org/10.3141/2631-03.

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Rutting and cracking occur simultaneously in asphalt mixtures as observed in the field and in the laboratory. Existing mechanical models have not properly addressed viscoelastic and viscoplastic deformation together with cracking attributable to model deficiencies, parameter calibration, and numerical inefficiency. This study developed viscoelasticplastic–fracture (VEPF) models for the characterization of viscoelasticity by Prony model and viscoplasticity by Perzyna’s flow rule with a generalized Drucker–Prager yield surface and a nonassociated plastic potential. Viscofracture damage was modeled by a viscoelastic Griffith criterion and a pseudo J-integral Paris’s law for crack initiation and propagation, respectively. The VEPF models were implemented in a finite element program by using a weak form partial differential equation modeling technique without the need for programming user-defined material subroutines. Model parameters were derived from fundamental material properties by using dynamic modulus, strength, and repeated load tests. Simulations indicated that the viscoelastic–viscoplastic–viscofracture characteristics were effectively modeled by the VEPF models for asphalt mixtures at different confinements and temperatures. An asphalt mixture under monotonic compressive loads exhibited a sequenced process including a pure viscoelastic deformation stage, a coupled viscoelastic–viscoplastic deformation stage, a viscoelastic–viscoplastic deformation coupled with a viscofracture initiation and a propagation stage, and then a viscoelastic–viscofracture rupture stage with saturated viscoplastic deformation. The asphalt mixture under repeated loads yielded an increasing viscoplastic strain at an increasing rate during the first half of the haversine load, while the increment of the viscoplastic strain (per load cycle) decreased with load cycles. The finite element program, which is based on a partial differential equation, effectively modeled the coupled viscoelastic–viscoplastic–viscofracture behaviors of the asphalt mixtures.
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Shi, Qianyu, Hongjun Yu, Xiangyuhan Wang, Kai Huang, and Jian Han. "Phase Field Modeling of Crack Growth with Viscoplasticity." Crystals 13, no. 5 (May 22, 2023): 854. http://dx.doi.org/10.3390/cryst13050854.

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The fracture of viscoplastic materials is a complex process due to its time-dependent and plastic responses. Numerical simulation for fractures plays a significant role in crack prediction and failure analysis. In recent years, the phase field model has become a competitive approach to predict crack growth and has been extended to inelastic materials, such as elasto-plastic, viscoelastic and viscoplastic materials, etc. However, the contribution of inelastic energy to crack growth is seldom studied. For this reason, we implement the fracture phase field model coupled with a viscoplastic constitutive in a finite element framework, in which the elastic energy and inelastic energy are used as crack driving forces. The implicit algorithm for a viscoplastic constitutive is presented; this procedure is suitable for other viscoplastic constitutive relations. The strain rate effect, creep effect, stress relaxation effect and cyclic loading responses are tested using a single-element model with different inelastic energy contributions. A titanium alloy plate specimen and a stainless-steel plate specimen under tension are studied and compared with the experimental observations in the existing literature. The results show that the above typical damage phenomenon and fracture process can be well reproduced. The inelastic energy significantly accelerates the evolution of the phase field of viscoplastic materials. For cyclic loadings, the acceleration effect for low frequency is more significant than for high frequency. The influence of the weight factor of inelastic energy β on the force-displacement curve mainly occurs after reaching the maximum force point. With the increase of β, the force drops faster in the force-displacement curve. The inelastic energy has a slight effect on the crack growth paths.
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Chen, Cheng‐lung. "Generalized Viscoplastic Modeling of Debris Flow." Journal of Hydraulic Engineering 114, no. 3 (March 1988): 237–58. http://dx.doi.org/10.1061/(asce)0733-9429(1988)114:3(237).

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Cordebois, J. P., and T. Constantin. "Viscoplastic modeling of cutting in turning." Journal of Materials Processing Technology 41, no. 2 (February 1994): 187–200. http://dx.doi.org/10.1016/0924-0136(94)90060-4.

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Ekh,, Magnus. "Thermo-Elastic-Viscoplastic Modeling of IN792." Journal of the Mechanical Behavior of Materials 12, no. 6 (December 2001): 359–88. http://dx.doi.org/10.1515/jmbm.2001.12.6.359.

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Zhelyazov, Todor, and Sergey Pshenichnov. "Modeling the viscoplastic transient dynamic process." Journal of Physics: Conference Series 2675, no. 1 (December 1, 2023): 012017. http://dx.doi.org/10.1088/1742-6596/2675/1/012017.

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Abstract A hollow viscoelastic right circular cylinder subjected to a time-dependent load is considered. The cylinder is with finite dimensions. A transient load acts upon the inner surface of the cylinder, whereas no loads are applied to outer surfaces. The end surfaces of the cylinder are restrained to move along the cylinder axis. The viscoelastic behaviour of the material is modelled using Boltzmann – Volterra equations. A yield criterion is implemented in the numerical analyses. By assumption, upon reaching the yield surface, the linear viscoelastic model switches to a plastic constitutive relation. The transient dynamic behaviour of the material is simulated for different intensities of the applied load and model parameters.
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Kim, Yun Tae, and S. Leroueil. "Modeling the viscoplastic behaviour of clays during consolidation: application to Berthierville clay in both laboratory and field conditions." Canadian Geotechnical Journal 38, no. 3 (June 1, 2001): 484–97. http://dx.doi.org/10.1139/t00-108.

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To analyze the effects of strain rate and viscoplastic strain on consolidation of natural clay, this paper presents a nonlinear viscoplastic model in which viscoplastic behaviour is modeled by a unique effective stress (σ'v) – viscous strain (εv) – viscous strain rate (ε·v) relationship. The proposed model can consider the effects of strain rate and viscoplastic strain on consolidation, to take into account the difference in strain rate between laboratory and field conditions, and the combined processes of generation and dissipation of pore pressure during consolidation. This model can also predict the behaviour of clay during stepwise loading, constant rate of strain, and relaxation of effective stress. The predicted values using numerical analysis are compared with measured values in laboratory tests and in situ, under an embankment built on soft clay at Berthierville, Quebec. It is possible to estimate the consolidation behaviour of natural clay with reasonable accuracy using the proposed nonlinear viscoplastic model.Key words: consolidation, soft clay, strain rate, viscoplastic, relaxation.
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Me´ric, L., and G. Cailletaud. "Single Crystal Modeling for Structural Calculations: Part 2—Finite Element Implementation." Journal of Engineering Materials and Technology 113, no. 1 (January 1, 1991): 171–82. http://dx.doi.org/10.1115/1.2903375.

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This paper is devoted to the implementation in a finite element code of a micro-macro anisotropic viscoplastic model for F.C.C. single crystals derived from the slip theory. It shows elasto-viscoplastic structural calculations of two laboratory specimens: a tubular specimen loaded in torsion and a cylindrical one loaded in tension-compression: various crystallographic orientations are considered in the last case.
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Ohno, Nobutada. "Homogenized Elastic-Viscoplastic Behavior of Anisotropic Open-Porous Bodies." Key Engineering Materials 535-536 (January 2013): 12–17. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.12.

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This lecture presents constitutive modeling of the homogenized elastic-viscoplastic behavior of pore-pressurized anisotropic open-porous bodies. The base solids are assumed to be metallic materials at small strains and rotations. First, by describing micro-macro relations relevant to periodic unit cells of anisotropic open-porous bodies with pore pressure, constitutive features are discussed for the viscoplastic macrostrain rate in steady states. Second, on the basis of the constitutive features found, the viscoplastic macrostrain rate is represented as an anisotropic function of Terzaghi’s effective stress. Third, the resulting viscoplastic equation is used to simulate the homogenized elastic-viscoplastic behavior of an ultrafine plate-fin structure and a thick perforated plate subjected to macroscopic loading in the absence and presence of pore pressure. The corresponding FE homogenization analysis is performed for comparison to validate the developed viscoplastic equation.
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Chow, C. L., X. J. Yang, and Edmund Chu. "Viscoplastic Constitutive Modeling of Anisotropic Damage Under Nonproportional Loading." Journal of Engineering Materials and Technology 123, no. 4 (July 24, 2000): 403–8. http://dx.doi.org/10.1115/1.1395575.

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Based on the theory of damage mechanics, a viscoplastic constitutive modeling of anisotropic damage for the prediction of forming limit curve (FLC) is developed. The model takes into account the effect of rotation of principal damage coordinates on the deformation and damage behaviors. With the aid of the damage viscoplastic potential, the damage evolution equations are established. Based on a proposed damage criterion for localized necking, the model is employed to predict the FLC of aluminum 6111-T4 sheet alloy. The predicted results agree well with those determined experimentally.
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Dissertations / Theses on the topic "Viscoplastic modeling"

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Diehl, Ted. "Modeling of elastic-viscoplastic behavior and its finite element implementation /." Online version of thesis, 1988. http://hdl.handle.net/1850/10461.

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Feng, Huaiping. "Multiphase Deformation Analysis of Elasto-viscoplastic Unsaturated Soil and Modeling of Bentonite." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/57266.

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The deformation behavior of unsaturated soil has been the subject of numerous experimental and theoretical investigations. However, this phenomenon is not fully understood. Problems, such as the adoption of the proper stress variables, reduction of suction inducing collapse, suction effect on soil stiffness, rate dependency and air trapped within the soil under rainfall infiltration still need additional studies. In the present studies, an elasto-viscoplastic model for unsaturated soil is used based on two stress variables: 1) the skeleton stress is adopted as the stress variable; 2) suction is incorporated into the constitutive model to describe the collapse behavior. In addition, to investigate the multiphase behavior of unsaturated soil, a three-phase coupled model has been proposed based on the Theory of Porous Media (TPM) and finite deformation theory. Van Genuchten type of equation is employed as a constitutive equation between the saturation and the suction. Three-dimensional multiphase simulations are carried out to reproduce the behavior of unsaturated soil during monotonic loading triaxial tests under drained and undrained conditions for water and air. Compared with experimental results and the simulated results, it is seen that the proposed formulation is very suitable to describe the mechanical behaviors of unsaturated soil. Cyclic behavior of unsaturated soil has attracted much attention during the past few years. An elasto-viscoplastic cyclic model for saturated soil is extended for modeling of unsaturated soil. Based on finite deformation theory, three-dimensional multiphase analyses for unsaturated soil under cyclic loading are presented. The simulations are verified with cyclic triaxial tests on unsaturated silty clay under undrained for water and air conditions. It shows that the proposed multiphase formulation can be used to simulate the behaviors of unsaturated soil under cyclic loading. The high expansiveness of bentonite is another significant problem in unsaturated soil mechanics. In this research, an elasto-viscoplastic model for unsaturated expansive soil has been developed. An evolutional equation is adopted for describing the absorption of water into interlayer of clay platelets. In addition, the internal compaction effect caused by swelling of clay unit is expressed with the expansion of overconsolidation boundary surface and static yield surface. Based on the model, one-dimensional finite element analysis is conducted to study the development of swelling pressure. Compared with experimental results and simulated results, it is found that the proposed model can reproduce the effects of dry density and initial water content on swelling behavior. Using the proposed swelling model, two-dimensional swelling behaviors of the waste barrier are simulated.
Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第13775号
工博第2879号
新制||工||1425(附属図書館)
25991
UT51-2008-C691
京都大学大学院工学研究科社会基盤工学専攻
(主査)教授 岡 二三生, 教授 松岡 俊文, 准教授 木元 小百合
学位規則第4条第1項該当
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Mimura, Mamoru. "ELASTO-VISCOPLASTIC CONSTITUTIVE MODELING FOR CLAY AND DEFORMATION ANALYSIS OF SOFT CLAY FOUNDATION." Kyoto University, 1991. http://hdl.handle.net/2433/74590.

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Kim, YoungSeok. "Elasto-viscoplastic modeling and analysis for cohesive soil considering suction and temperature effects." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144866.

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Danielsson, Mats 1973. "Micromechanics, macromechanics and constitutive modeling of the elasto-viscoplastic deformation of rubber-toughened glassy polymers." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17608.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.
Includes bibliographical references (p. 251-258).
Glassy polymers, such as polystyrene (PS), poly(methyl methacrylate) (PMMA) and polycarbonate (PC), are common engineering polymers that have found uses in consumer products ranging from portable computers and optical lenses, to automotive components and appliance housings. PMMA and PS are typically considered to be brittle polymers, since they fail in a brittle manner under low triaxiality conditions, such as under uniaxial tension. Polycarbonate is considered to be a more ductile polymer than PMMA and PS, since it will deform plastically under uniaxial tension. However, PC does exhibit brittle behavior under certain loading conditions, such as low temperatures, high strain rates, or highly (tensile) triaxial stress states. A technique used for reducing the brittleness (increasing the fracture toughness) of glassy polymers is rubber-toughening. The technology of rubber-toughening, which involves blending a small volume fraction (5-20%) of rubber particles with the homopolymer, has been used commercially since the 1940s, and has been of major importance to the plastics industry. The technology of rubber-toughening is qualitatively well understood, but quantitative tools to study the material response are still at an early stage of development. The purpose of this thesis is to develop numerical tools to investigate the mechanical behavior of rubber-toughened glassy polymers, with emphasis on rubber-toughened PC. To this end, several tools are developed.
(cont.) Three-dimensional micromechanical models of the heterogeneous microstructure are developed to study the effects of particle volume fraction on the underlying elastic visco-plastic deformation mechanisms in the material, and how these mechanisms influence the macroscopic [continuum-level] response of the material. A continuum-level constitutive model is developed for the homogenized large-strain elastic-viscoplastic behavior of the material. The model is calibrated against micromechanical modeling results for rubber-toughened polycarbonate. The constitutive model is used to study boundary value problems such as notched tensile bars, where a multi-scale modeling approach enables assessment of failure due to local stress and strain levels in the material. The results are compared to experimental studies to establish correlations between the continuum-level response of the material, and observed failure mechanisms in the material.
by Mats Danielsson.
Ph.D.
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Rodriguez, Martinez José Antonio. "Advanced constitutive relations for modeling thermo-viscoplastic behaviour of metallic alloys subjected to impact loading." Thesis, Metz, 2010. http://www.theses.fr/2010METZ004S/document.

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Dans cette thèse certains problèmes liés au comportement thermo-viscoplastiques des alliages métalliques sont analysés. Ainsi, la réponse des métaux pour un large spectre de vitesses de déformation et en températures a été étudiée. Ceci est d'un intérêt majeur dans de nombreuses applications industrielles. L'optimisation des matériaux dans le but de supporter de plus en plus de sollicitations extrêmes est un problème très actuel. Au niveau modélisation la validation du modèle Rusineck-Klepaczko (RK) a été étendu à différents alliages sans dépendance avec la déformation plastique dans la définition du volume thermiquement activé. De plus, une extension du modèle MRK a été faite dans le but de décrire le comportement des matériaux présentant une dépendance en déformation dans la description de la sensibilité à la vitesse de déformation. Ce modèle a été utilisé pour décrire les matériaux avec une sensibilité négative à la vitesse de déformation et présentant un fort effet du drainage visqueux. En complément une loi de comportement a été développée pour décrire le comportement des matériaux avec une transformation de phase de type martensitique. Ces lois de comportement ont été implémentées dans un code éléments finis. Grâce à ces outils des études précises et fines ont été menées au niveau des instabilités thermo-viscoplastiques notamment sous chargement dynamique. Deux études particulières ont été faites, l'une sur le processus d'expansion des anneaux et une seconde sur la traction dynamique. Une étude complète a été menée sur le couplage entre la plasticité locale et le phénomène lié à la propagation des ondes élastiques générées par l'impact du chargement. En complément des essais 3D de type perforation ont été réalisés dans le but de valider les approches analytiques. Divers matériaux ont été utilisés comme : l'acier ES, un alliage d'aluminium 2024-T3, un acier AISI304 et un acier de type TRIP 1000. L'ensemble des matériaux ayant été caractérisé au préalable via des essais simples. Le but de ces études de perforation étant d'étudier leur réponse sous impact dynamique et de valider les outils analytiques et numériques
In this doctoral Thesis the thermo-viscoplastic behaviour of metallic alloys used for structural protection purposes has been analyzed. The study includes the proposition of advanced constitutive relations and their integration into numerical models. These numerical models are validated for impact problems within the low-intermediate range of impact velocities (until 85 m/s). The advanced constitutive relations derived are based on the Rusinek-Klepaczko model whose validity is extended to metallic alloys showing dependence on plastic strain on the volume thermally activated. In addition the constitutive relations developped allow describing macroscopically viscous drag effects at high strain rates, negative strain rate sensitivity and martensitic transformation phenomena. Implementation of previous constitutive relations has been conducted into the FE code ABAQUS/Explicit. Thus, development of numerical models for the simulation of ring expansion test and conventional dynamic tension test has allowed analyzing the formation of plastic instabilities. In this analysis the effects of strain rate sensitivity, strain hardening and plastic wave propagation have been considered. Finally, it has been examined the impact behaviour of metallic alloys widely used for structural protection purposes: the mild steel ES, the aluminium alloy 2024-T3, the steel AISI 304 and the steel TRIP 1000. For that goal conventional characterization tests as well as impact tests have been conducted. Numerical models based on the constitutive relations derived have been developped in order to simulate the impact tests. These numerical models offered a suitable description of the perforation process in terms of ballistic limit and the associated failure mode of the target
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Samtani, Nareshkumar Chandan. "Constitutive modeling and finite element analysis of slowly moving landslides using hierarchical viscoplastic material model." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185374.

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The prediction of motion of slowly moving landslides, also referred to as creeping slopes, is important for the reduction of landslide hazards. Such continuous and slowly moving landslides do not represent the usual stability problems of geotechnical analysis because these slopes are neither still nor ruptured but they move. For proper modeling of the motion of landslides, it is essential to develop improved techniques that integrate appropriate modeling of geological materials involved, laboratory and field tests, and verifications using computational methods. This dissertation focusses attention on the development of such an appropriate model for the time-dependent behavior of creeping landslides. Based on field observations it is proposed that the phenomenon of creeping landslides can be considered as involving the motion of a large mass of soil over a parent (fixed) mass with pronounced shear deformations occuring in a thin layer between the moving mass and the parent mass. The thin layer is refered to as interface zone while the overlying mass is refered to as solid body. The generalized Hierarchical Single Surface (HiSS) series of plasticity models are adopted to characterize the solid body. The interface zone is modeled using the specialization of the HiSS models for conditions occuring in the thin layer. Time dependency is introduced in constitutive models by adopting Perzyna's elastoviscoplastic formulation. The parameters for the HiSS and interface models are determined from laboratory tests on soils obtained from an actual slowly moving landslide at Villarbeney in Switzerland. Triaxial tests along various stress paths and oedemeter tests are conducted for the solid body. New analytical solutions are derived for prediction of oedometer tests. A general procedure for determination of viscous parameters is developed and techniques to process raw creep test data are proposed. Novel and representative simple shear interface tests are conducted to find parameters for the interface model. Special techniques for experimental analysis have been developed. A modified interface model to simulate the observed phenomenon of only compaction under shear is proposed. The parameters for the constitutive models are verified by numerically backpredicting experimental tests. An existing finite element code has been modified to incorporate various aspects of the small strain elastoviscoplastic formulation. Field measurements in the form of inclinometer profiles at various borehole locations on Villarbeney landslide are available. These inclinometer profiles are predicted using the proposed model. A comparison of the field measurements and the results from finite element analysis shows that such a model can be successfully used for predicting the behavior of slowly moving landslides.
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Tini, Vivian [Verfasser]. "Lifetime prediction of a typical rocket combustion chamber by means of viscoplastic damage modeling / Vivian Tini." Aachen : Shaker, 2014. http://d-nb.info/1063265657/34.

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Hogan, Erik A. "An efficient method for the optimization of viscoplastic constitutive model constants." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1274.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.
Bachelors
Engineering and Computer Science
Aerospace Engineering
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Bonatti, Colin. "Testing and modeling of the viscoplastic and fracture behavior of metallic foils used in lithium-ion batteries." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101332.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 37-39).
Aluminum 1235-H18 foils with sub-micron grain dimensions are often used as current collectors in Li-ion batteries. Due to their contribution to the structural integrity of batteries under impact loading, their plastic and fracture response is investigated in detail. Using a novel micro-tensile testing device with a piezoelectric actuator, dogbone specimens with a 1.25 mm wide and 5.7 mm long gage section are tested for three different in-plane material orientations and for strain rates ranging from 10-5/s to 10-2/s. It was found that the stress at a proof strain of 2% increased by about 25% from 160MPa to 200MPa within this range of strain rates. Furthermore, pronounced inplane anisotropy is observed as reflected by Lankford ratios variations from 0.2 to 1.5 .A material model is proposed which borrows elements of the anisotropic Yld2000-2d plasticity model and integrates these into a basic viscoplasticity framework that assumes the multiplicative decomposition of the equivalent stress into a strain and strain rate dependent contributions. The an isotropic fracture response is characterized for a strain rate of 10-3 /s using notched tension and Hasek punch experiments. It is found that a simple stress state independent version of the anisotropic MMC fracture initiation model provides a reasonable approximation of the observed experimental results.
by Colin Bonatti.
S.M.
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Books on the topic "Viscoplastic modeling"

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Center, Langley Research, ed. Effects of elevated temperature on the viscoplastic modeling of graphite/polymeric composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1991.

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On the thermodynamic framework of generalized coupled thermoeleastic-viscoplastic-damage modeling. Washington, DC: National Aeronautics and Space Administration, 1991.

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BING: A BASIC computer program for modeling unsteady flow of Bingham viscoplastic material. [Denver, Colo.]: U.S. Geological Survey, 1989.

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Schmidt, Martin J. High pressure and high strain rate behavior of cementitious materials: Experiments and elastic/viscoplastic modeling. 2003.

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Book chapters on the topic "Viscoplastic modeling"

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Hicher, Pierre-Yves, and Isam Shahrour. "Viscoplastic Behavior of Soils." In Constitutive Modeling of Soils and Rocks, 261–98. London, UK: ISTE, 2013. http://dx.doi.org/10.1002/9780470611081.ch7.

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Yin, Zhen-Yu, Pierre-Yves Hicher, and Yin-Fu Jin. "Viscoplastic Modeling of Soft Soils." In Practice of Constitutive Modelling for Saturated Soils, 229–71. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6307-2_7.

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Farina, Angiolo, and Lorenzo Fusi. "Viscoplastic Fluids: Mathematical Modeling and Applications." In Lecture Notes in Mathematics, 229–98. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74796-5_5.

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Chaouki, Hicham, Stéphane Thibodeau, Houshang Alamdari, Donald Ziegler, and Mario Fafard. "Viscoplastic Modeling of the Green Anode Forming Process." In Light Metals 2014, 1135–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118888438.ch189.

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Chaouki, Hicham, Stéphane Thibodeau, Houshang Alamdari, Donald Ziegler, and Mario Fafard. "Viscoplastic Modeling of the Green Anode Forming Process." In Light Metals 2014, 1135–39. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48144-9_189.

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Wei, Y., C. L. Chow, M. K. Neilsen, and H. E. Fang. "Constitutive Modeling of Viscoplastic Damage in Solder Material." In IUTAM Symposium on Creep in Structures, 131–40. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-015-9628-2_14.

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Schmidt, Martin J., Oana Cazacu, and Mark L. Green. "High-Pressure Behavior of Concrete: Experiments and Elastic/Viscoplastic Modeling." In Materials under Extreme Loadings, 247–66. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118622612.ch11.

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Oka, Fusao, and Sayuri Kimoto. "Elasto-viscoplastic constitutive modeling of the swelling process of unsaturated clay." In Computational Multiphase Geomechanics, 271–90. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003200031-9.

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Abida, M., J. Mars, F. Gehring, A. Vivet, and F. Dammak. "Anisotropic Elastic–Viscoplastic Modelling of a Quasi-unidirectional Flax Fibre-Reinforced Epoxy Subjected to Low-Velocity Impact." In Design and Modeling of Mechanical Systems—III, 171–78. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_17.

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Senchenkov, Igor K., O. P. Chervinko, and M. V. Banyas. "Modeling of Thermomechanical Process in Growing Viscoplastic Bodies with Accounting of Microstructural Transformation." In Encyclopedia of Thermal Stresses, 3147–57. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-2739-7_618.

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Conference papers on the topic "Viscoplastic modeling"

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van Breemen, L. C. A., L. E. Govaert, H. E. H. Meijer, Albert Co, Gary L. Leal, Ralph H. Colby, and A. Jeffrey Giacomin. "Finite Strain Viscoplastic Modeling of Polymer Glasses." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964564.

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Freed, Alan D. "High temperature viscoplastic ratchetting: Material response or modeling artifact." In Proceedings of the eighth symposium on space nuclear power systems. American Institute of Physics, 1991. http://dx.doi.org/10.1063/1.40162.

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Chow, C. L., X. J. Yang, and Edmund Chu. "Viscoplastic Constitutive Modeling of Anisotropic Damage Under Nonproportional Loading." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1873.

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Abstract Based on the theory of damage mechanics, a viscoplastic constitutive modeling of anisotropic damage for the prediction of forming limit curve (FLC) is developed. The model takes into account the effect of rotation of principal damage coordinates on the deformation and damage behaviors. With the aid of the damage viscoplastic potential, the damage evolution equations are established. Based on a proposed damage criterion for localized necking, the model is employed to predict the FLC of aluminum 6111-T4 sheet alloy. The predicted results agree well with those determined experimentally.
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Oathes, Tyler J., and Ross W. Boulanger. "Nonlinear Viscoplastic Modeling of the Feijão Dam 1 Failure." In Geo-Congress 2022. Reston, VA: American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784484067.014.

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Begum, Naheed, Abderrahim Ouazzi, and Stefan Turek. "FEM modeling and simulation of thixo-viscoplastic flow problems." In INTERNATIONAL CONFERENCE ON ELECTRONICS, ENGINEERING PHYSICS, AND EARTH SCIENCE. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0194833.

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Cuddalorepatta, Gayatri, and Abhijit Dasgupta. "Multi-scale viscoplastic modeling of Pb-free Sn3.0Ag0.5Cu solder interconnects." In Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). IEEE, 2010. http://dx.doi.org/10.1109/esime.2010.5464530.

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Achak, N., B. Bahrar, and K. Gueraoui. "Numerical modeling of transient viscoplastic fluid flow in a pipe." In TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES21Gr. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0093767.

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Montheillet, Frank, and Gilles A. Roy. "Modeling high strain rate viscoplastic deformations combined with phase changes." In SHOCK COMPRESSION OF CONDENSED MATTER - 2011: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2012. http://dx.doi.org/10.1063/1.3686579.

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Bergstrom, Jorgen S., David J. Quinn, Samual Chow, and Sekar M. Govindarajan. "Non-Linear Viscoplastic Material Modeling of the Degradation Response of PLA." In ASME 2013 Conference on Frontiers in Medical Devices: Applications of Computer Modeling and Simulation. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fmd2013-16120.

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The bioabsorbable thermoplastic Poly(lactic acid), PLA, is extensively used in many medical applications including surgical sutures, drug delivery systems, internal fixation devices, tissue engineering scaffolds, and drug eluting stents. Frequently, a PLA component is required to withstand mechanical loading for a desired amount of time and then degrade via hydrolysis. In its raw, undegraded form, PLA exhibits a non-linear, viscoplastic mechanical response. Through the degradation process, the modulus, yield stress and flow behavior of PLA changes. Accurate simulations of bioabsorbable implants require a constitutive model that accounts for the viscoplastic nature of the material and its evolution over time. In this work we present the development of a new material model framework for predicting the time-dependent viscoplastic response of PLA. The proposed material model also captures the change in mechanical behavior over time due to hydrolysis. The details of the proposed model are presented, and the model predictions are compared to preliminary experimental data.
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Zhang, Feng, Atsushi Yashima, Guan Lin Ye, Hla Aung, Kiyokazu Naitou, and Teruo Nakai. "Elasto-Viscoplastic Behavior of Soft Sedimentary Rock, Tests and Its Modeling." In Second Japan-U.S. Workshop on Testing, Modeling, and Simulation in Geomechanics. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40870(216)12.

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Reports on the topic "Viscoplastic modeling"

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Ross, C. A., N. D. Cristescu, and Oana Cazacu. Experiments and Elastic/Viscoplastic Constitutive Modeling of Concrete and Geomaterials. Fort Belvoir, VA: Defense Technical Information Center, March 2003. http://dx.doi.org/10.21236/ada413877.

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