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Journal articles on the topic 'Material Properties Determination'

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Author: Grafiati

Published: 14 March 2023

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1

Dzugan, Jan, and Pavel Konopik. "OS15F059 SMALL PUNCH TEST APPLICATION TO MATERIAL PROPERTIES EVOLUTION DETERMINATION." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS15F059——_OS15F059—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os15f059-.

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2

Dzugan, Jan, and Pavel Konopik. "OS15-3-1 SMALL PUNCH TEST APPLICATION TO MATERIAL PROPERTIES EVOLUTION DETERMINATION." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS15–3–1—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os15-3-1-.

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3

Paschalis, Eleftherios P., Klaus Klaushofer, and Markus A. Hartmann. "Material properties and osteoporosis." F1000Research 8 (August 22, 2019): 1481. http://dx.doi.org/10.12688/f1000research.18239.1.

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The main clinical tool for the diagnosis and treatment of skeletal diseases such as osteoporosis is the determination of bone mineral density by dual x-ray absorptiometry. Although this outcome contributes to the determination of bone strength, the clinical evidence to date suggests that it does not correlate strongly with fracture incidence. The main reason for this discrepancy is the fact that several other bone properties, such as material properties, are not taken into account. This short review summarizes the reasons why material properties are important in the determination of bone strength and briefly discusses some of them as well as their influence on bone’s mechanical performance.

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4

Elsenheimer, D., and P. Groche. "Determination of material properties for hot hydroforming." Production Engineering 3, no. 2 (April 15, 2009): 165–74. http://dx.doi.org/10.1007/s11740-009-0156-2.

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5

Aguiar, Adair R., and Alan B. Seitenfuss. "Determination of material properties of a linearly elastic peridynamic material." Mathematics and Mechanics of Solids 27, no. 6 (November 23, 2021): 1069–91. http://dx.doi.org/10.1177/10812865211051406.

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We investigate the properties of an isotropic linear elastic peridynamic material in the context of a three-dimensional state-based peridynamic theory, which considers both length and relative angle changes, and is based on a free energy function proposed in previous work that contains four material constants. To this end, we consider a class of equilibrium problems in mechanics to show that, in interior points of the body where deformations are smooth, the corresponding solutions in classical linear elasticity are also equilibrium solutions in peridynamics. More generally, we show that the equations of equilibrium are satisfied even when two of the four peridynamic constants are arbitrary. Pure torsion of a cylindrical shaft and pure bending of a cylindrical beam are particular cases of this class of problems and are used together with a correspondence argument proposed elsewhere to determine these two constants in terms of the elasticity constants of an isotropic material from the classical linear elasticity. One of the constants has a singularity in the Poisson ratio, which needs further investigation. Two additional experiments concerning bending of cylindrical beam by terminal load and anti-plane shear of a hollow cylinder, which do not belong to the previous class of problems, are used to validate these results.

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6

Vogel, D., R. Ku¨hnert, M. Dost, and B. Michel. "Determination of Packaging Material Properties Utilizing Image Correlation Techniques." Journal of Electronic Packaging 124, no. 4 (December 1, 2002): 345–51. http://dx.doi.org/10.1115/1.1506698.

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Thermo-mechanical reliability in advanced electronic packaging requires new materials testing approaches. The necessary understanding of the impact of very local material stressing on component reliability leads to the need of materials testing and characterization on microscopic scale. For example, defect initiation and propagation in multilayer structures as in WLP and flip chip technology, the influence of material migration to mechanical behavior or defect development in ultra-thin silicon dies often are not well understood. A key for micro materials testing and characterization is the measurement of strains and displacements inside microscopic regions. Correlation techniques (e.g., microDAC, nanoDAC) are one of the promising tools for that purpose. Their application potentials to micro testing for electronic packaging materials are demonstrated in the paper. More in detail, CTE measurement and crack testing are discussed. First attempts for testing under AFM conditions and their results are considered.

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7

Čačko, Viliam, Iveta Onderová, Ľubomír Šooš, Pavol Varga, and Andrej Smelík. "Experimental Determination of Mechanical Properties of Waste Steel Sheets." Materials Science Forum 994 (May 2020): 62–69. http://dx.doi.org/10.4028/www.scientific.net/msf.994.62.

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The paper is primarily focused on the determination of the ultimate strength of pressed materials in the form of steel sheets. The breaking strength of homogeneous materials such as e.g. steel sheet is not a relevant indication for pressed steel sheet waste material. The ultimate strength serves as a main parameter in the design of sheet metal cutting machines. For the design and technological design of machines and equipment for shearing steel waste in the form of pressed sheets, it is necessary to know the limit strength of the material. The paper describes in detail the experimental procedure and the principle of determining the ultimate strength of the steel waste sheet. Several dozen experimental samples of pressed metal waste were used. The very principle of the experiment consisted of sheared samples, while monitoring the shear force and the thickness of the pressed material. The ultimate strength of the shear material was calculated from the measured data. The measured and calculated data were statistically processed to increase the objectivity of the determination of the already mentioned ultimate strength parameter of the pressed waste sheets.

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8

Hlaváčová, Z. "Low frequency electric properties utilization in agriculture and food treatment." Research in Agricultural Engineering 49, No. 4 (February 8, 2012): 125–36. http://dx.doi.org/10.17221/4963-rae.

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Determination of electrical properties is utilized in a wide range of disciplines and industries. A brief compendium of agricultural materials and food electrical properties exploitation is presented in this paper. The measurement of electrical conductivity or resistivity can be utilized at investigation of cell membrane properties on microscopic level. Moreover the electrical conductivity have utilization at the salinity of soils and irrigation water determination. Biological material properties are determined from their leachates too. The conductivity measurement are applied for determination of various characteristics of agricultural materials and food, for example for determination of the frost sensitiveness, of chilling and freezing tolerance, of moisture content, of seeds germination, of mechanical stress, of pasteurization, of other properties of grains, seeds, meat, sugar, milk, wood, soil, fruit and vegetable, infected food, … The utilization of dielectric properties are also described; for example in agricultural materials and food quality sensing (moisture content, maturity of fruit, freshness of eggs, potential insect control in seeds, radio frequency heating, …). The classification of permittivity measurement techniques at the low frequencies is mentioned.

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9

Zhou, Huan-Xiang. "Determination of Condensate Material Properties from Droplet Deformation." Journal of Physical Chemistry B 124, no. 38 (August 28, 2020): 8372–79. http://dx.doi.org/10.1021/acs.jpcb.0c06230.

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10

Džugan, Jan, Pavel Konopík, Radek Procházka, and Zuzanka Trojanová. "SPD Processed Materials Mechanical Properties Determination with the Use of Miniature Specimens." Materials Science Forum 879 (November 2016): 471–76. http://dx.doi.org/10.4028/www.scientific.net/msf.879.471.

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The main reason why new technologies and treatment procedure are being developed is to attain special mechanical properties. However, these developments are nowadays done on a small material volume either using some laboratory simulators, applying sever plastic deformation procedures or chemical composition screening for multicomponent alloys development by laser or electron beam melting. In all these application a small volume of the material assessed is available and standard procedures for crucial mechanical properties determinations are not applicable. Thus small size techniques should be applied. There has been extensively used small punch test technique (SPT) for those cases in recent years. This technique is mainly based on the evaluation using correlation between standard and SPT tests for considered material. In cases when insufficient material volume is available, those correlations cannot be established and thus comparative evaluation only can be carried out. This kind of evaluation is insufficient for the contemporary purposes, when full material potential is to be utilized. Therefore, procedures providing results directly comparable with standard specimens are being developed. Fundamental properties are those determined from tensile tests. The current paper is presenting application of developed miniature tensile test specimen method to materials after SPD processes. Quasi static properties determination is shown here for Magnesium and Titanium alloys for ECAP and Rotary Swaging SPD techniques. The results obtained from testing can be used not only for a direct material properties assessment and comparison, but also as input data for FEM codes, significantly increasing the materials considered application potential assessment.

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11

Iwan, Wästerlund, Nilsson Peter, and Gref Rolf. "Influence of storage on properties of wood chip material." Journal of Forest Science 63, No. 4 (April 27, 2017): 182–91. http://dx.doi.org/10.17221/46/2016-jfs.

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The use of bioenergy for district heating is usually seasonal with a high consumption during the cold periods. Therefore some type of the harvested material storage is necessary. Woody materials are usually reduced in size to chips and stored outdoors in piles or under cover. During storage the materials decompose as a result of chemical and biological processes resulting in dry matter loss. The degree and rate of decomposition primarily depend on material moisture content and temperature. In this study four piles of wood chips, each containing 240 t wet weight, were studied for moisture content and temperature development during 5.5 months of storage. Two piles were stacked normally and two compacted at 50 to 60 kPa pressures. Additionally, a ventilating tarp, TopTex, was used to test the effect of covering the material. Nylon net bags with the same chip material were placed at different positions in the piles for moisture content determination. The volume of three piles shrunk between 3 and 6% but the volume of the uncovered compacted pile shrunk almost 6%. The low shrinkage indicated that material losses in this study were small. The temperature development in all piles followed a similar pattern but with maximum temperatures at different positions, top for the uncompacted pile and innermost for the compacted one. The ventilation tarp on the piles had only a minor effect on the temperature development. Moisture content decreased but the results are uncertain due to problems with the scale precision. Net bag analyses showed that the lowest moisture loss occurred in the middle of the uncovered compacted pile but the values only refer to their specific position in the pile.

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12

Palková, Adela, and Milan Palko. "Material Properties of Windows in the Building Energy Concept." Advanced Materials Research 855 (December 2013): 116–19. http://dx.doi.org/10.4028/www.scientific.net/amr.855.116.

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The window is an exposed part of the external cladding. Assessment of windows regarding the heat transfer coefficient. Categorization of thermo-technical requirements for windows. Experimental measurement and determination of heat transfer coefficient. Calculation and determination of linear thermal transmittance. Material base of windows for passive energy building standard.

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13

Rimár, Miroslav, Tomas Olejar, and Milan Mičko. "Tensile Properties Determination of Plastic Materials with Different Regranulate Content." Applied Mechanics and Materials 159 (March 2012): 341–45. http://dx.doi.org/10.4028/www.scientific.net/amm.159.341.

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The paper deals with the regranulate impact on the mechanical properties of fundamental material. It focuses on the mechanical properties analysis of materials with different regranulate content. To determine the mechanical properties we chose the tension test, which is one of primary mechanical properties tests.

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14

Rund, Martin, Josef Volák, and Miroslava Šindelářová. "Small Size Specimens Methods for Evaluation of Mechanical Properties." Advanced Materials Research 1127 (October 2015): 1–8. http://dx.doi.org/10.4028/www.scientific.net/amr.1127.1.

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The evaluation of actual mechanical properties of the in-service structures after some time of operation or determination of local properties for detailed FEM simulation yields the necessity to obtain relevant material data with high accuracy from small volume of the experimental material. Therefore, non-destructive or semi-destructive techniques using small size samples are being developed. The use of small-scale samples also enables the evaluation of material properties in various locations of tested component; for example, the mechanical properties of the individual regions of welds, local properties determination for properties anisotropy assessment and properties determination in cases when small volume of the experimental material is available e.g. residual service life assessment of in service components, bulk nanostructured materials… There are shown results of small size tensile tests (M-TT) and small sized fatigue tests (SFT). In the case of small size specimens testing a machining becomes more pronounced that in the case of standard sized specimens. The current study brings information on the machining influence on the expected results obtained by small size specimens in the case of quasi-static tensile tests and fatigue test.

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15

WANG, YUN-CHE, CHIH-CHIN KO, and LI-MING SHIAU. "ACCURATE DETERMINATION OF TORSION AND PURE BENDING MOMENT FOR VISCOELASTIC MEASUREMENTS." International Journal of Modern Physics: Conference Series 24 (January 2013): 1360016. http://dx.doi.org/10.1142/s2010194513600161.

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Measurements of time-dependent material properties in the context of linear viscoelasticity, at a given frequency and temperature, require accurate determination of both loading and deformation that are subjected to the testing materials. A pendulum-type viscoelastic spectroscopy is developed to experimentally measure loss tangent and the magnitude of dynamic modulus of solid materials. The mechanical system of the device is based on the behavior of the cantilever beam, and torsion and pure bending moment are generated from the interaction between a permanent magnet and the Helmholtz coils. The strength of the magnetic interactions may be determined with a material with known mechanical properties, such as aluminum 6061T4 alloy. The sensitivity of the torque measurement is on the order of one micro N-m level. With the high accurate torque measurement and deformation detection from a laser-based displacement measurement system, viscoelastic properties of materials can be experimentally measured in different frequency regimes. Sinusoidal driving signals are adopted for measuring complex modulus in the sub-resonant regime, and dc bias driving for creep tests in the low frequency limit. At structural resonant frequencies, the full-width-at-half-maximum (FWHM) method or Lorentzian curve fitting method is adopted to extract material properties. The completion of determining material properties in the wide frequency spectrum may help to identify the deformation mechanisms of the material and to create better models for simulation work.

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16

DZUGAN, Jan, and Pavel KONOP^|^Iacute;K. "Small Punch Test Application to Material Properties Evolution Determination." Journal of Solid Mechanics and Materials Engineering 6, no. 6 (2012): 782–91. http://dx.doi.org/10.1299/jmmp.6.782.

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17

LU, XIN L., and VAN C. MOW. "Biomechanics of Articular Cartilage and Determination of Material Properties." Medicine & Science in Sports & Exercise 40, no. 2 (February 2008): 193–99. http://dx.doi.org/10.1249/mss.0b013e31815cb1fc.

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18

Koshlak, Hanna, and Anatoliy Pavlenko. "Thermophysical properties of porous materials." Joupnal of New Technologies in Environmental Science 7, no. 4 (December 15, 2020): 29–39. http://dx.doi.org/10.30540/jntes-2020-4.3.

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The study of the porosity of thermal insulation made of refractory materials is an important task for the power industry, since the thermal conductivity of porous materials depends on the shape and especially the location of the pores. An analytical review of existing technologies shows that research in this area is not enough to simulate the process of heat and mass transfer in porous alumina material. Experimental determination of the characteristics of heat and mass transfer in porous materials during the formation of a porous structure is a pressing scientific problem. This article analyzes the influence of the composition of materials on the formation of pores, as well as the effect of various impurities and temperature on the thermal conductivity of the material.

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19

Garašić, Ivica, Maja Jurica, Ante Barišić, and Dario Iljkić. "Determination of ballistic properties on ARMOX 500T steel welded joint." Engineering review 39, no. 2 (2019): 186–96. http://dx.doi.org/10.30765/er.39.2.8.

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In this paper, the effect of different hardness filler materials and sequence of welding on the ballistic performance has been investigated. Also, besides the optimization of the ballistic properties, other mechanical testing was carried out in order to achieve wanted mechanical properties along the entire welded joint. The experimental work includes macrostructure analysis, ballistic testing, and hardness testing of steel welded joint. The base material used in the experiment were ARMOX® 500T plates. In this experiment 3 different filler materials were used. Based on the testing results, it was found out that best ballistic performance of the welded joint is achieved if capping layer is welded with a hardfacing filler material. This distributes the impact energy to a greater area and transfers it to the lower hardness weld layer underneath which then absorbs the rest of the energy.

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20

Sofuoglu, Hasan, Hasan Gedikli, and Jahan Rasty. "Determination of Friction Coefficient by Employing the Ring Compression Test." Journal of Engineering Materials and Technology 123, no. 3 (September 13, 2000): 338–48. http://dx.doi.org/10.1115/1.1369601.

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The main objective of this research was to investigate the effect of material properties, strain-rate sensitivity, and barreling on the behavior of friction calibration curves. The compression tests were conducted to obtain the necessary material properties for the finite element analysis. A series of ring compression tests were then conducted in order to determine the magnitude of the friction coefficient, μ. The experiments were first conducted for the modeling materials, namely, white and black plasticine and later on, for aluminum, copper, bronze, and brass. The experiments were then simulated via an elastic-plastic finite element code (ABAQUS). Contrary to the results available in the literature, where the same friction calibration curves are recommended for all types of materials and test conditions, the results of this investigation showed that friction calibration curves are indeed affected by the material properties and test conditions.

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21

Teodorovic, Nevenka, and Predrag Jovanic. "Determination of the synthetic hydroxyapatite life circle used in dental practice." Chemical Industry and Chemical Engineering Quarterly 18, no. 1 (2012): 129–35. http://dx.doi.org/10.2298/ciceq111002054t.

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Dental materials are specific materials that were developed as a general materials for specific aplication in oral environment. To determinate the functional properties of this materials, we are obligated to use nonstandard approach and specific methods. In this study, two methodologies of material testing-artificial agging and quantification of visual informations for life circle assessment of hydroxyapatite (Hap) based materials, were used. Hap was chemically synthetized which produced the material with high purity and crystallinity. Artificially produced Hap is used in stomatology for repair of bone tissue, as a filling for periodontal defects, and as a preservative augmentation for alveolar ridges. In the mean time those materials are used for definitive root canal obturation in endodontic therapy procedure as an apical plug or as complete filling material. This research was focused on the analysis of the bonding properties of the Hap based materials to the root canal walls. The methodology of artificial agging was used together with the quantification of visual informations in purpose to quantify the Hap bonding properties and bonding quality. Experiments were done in-vitro, with the artificia saliva as the agressive agent. The experimental tooths were analyzed by the high resolution optical microscope for the morphological characterisation of the bonding layer. The model for the bond life circle assessment was developed. Hap based materials proved that has favorable properties for the dental use. The presented results proved that the combination of two methodologies (artificial agging and quantification of visual informations could be used as the tool for analyzing the material-dentine interaction.

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22

Bondar, V. S., Y. M. Temis, and M. V. Biryukov. "Determination of mechanical properties of foam aluminum under impact loading." Izvestiya MGTU MAMI 8, no. 4-4 (August 20, 2014): 11–14. http://dx.doi.org/10.17816/2074-0530-67319.

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In the framework of the work the authors conducted a simulation of the behavior of porous materials of different densities under the influence of impact loading. Results of computational experiment were compared with the results obtained using the model of Deshpande-Fleck porous material.

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23

Manas, Pavel, Radek Vrana, Zdenek Hejmal, and Branislav Dubec. "Determination of the Material Properties of Recycled Rubber for Explicit FEM Simulation." Key Engineering Materials 755 (September 2017): 1–7. http://dx.doi.org/10.4028/www.scientific.net/kem.755.1.

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Recycled rubber materials are one of cheap and suitable materials for energy absorbers in protective structures. Standard tests of elastomers in uniaxial or biaxial tension is not suitable and efficient for energy absorbers made of recycled car tires. Simple compression test and simple impact test are described material properties from those tests are determined and compared with simulation in ANSYS/AUTODYN.

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24

Velavan, K., T. MuthuKrishnan, T. Srinivasan, P. Sethuvelappan, and N. Ramanan. "Determination of Corrosion Resistance Properties of Al-Sio₂ Composite Material." Journal of Physics: Conference Series 2070, no. 1 (November 1, 2021): 012191. http://dx.doi.org/10.1088/1742-6596/2070/1/012191.

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Abstract The Al-Sio2 Composite work are widely used in engineering application in automotive industry in india and other countries. The Al-Sio2 composite has been mainly used on high corrosion resistance material. The material used as a high thermal application also. Example boiler shield and engine shield also. The main performance of Al-Sio2 material used in a corrosion resistance properties. Because the aluminum composite material when goes to the heat treatment application. The material was meeting in corrosion. In this way engineering industry was affected. So we are currently focused the work corrosion resistance application. In this work we have used for the Al-Sio2 material was reinforced in aluminum 6061 material. The material was developed by stir casting method. The method the stirrer was run by 2000 RPM. And the material was molten by 550 degree temperature. That time the Al-Sio2 powder was dropped by the molten metals. Hence the composite now formed by Al-Sio2 composite material. After that we have checked by the SEM fractures and XRD measurement and other material properties also and also fracture surface of the materials. Finally we have concluded the result of work also.

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25

Pesetskaya, Ekaterina, Andreas Öchsner, and Sergei Rogosin. "The Effective Conductivity of 2D Porous Materials with Temperature Dependent Material Properties." Materials Science Forum 553 (August 2007): 112–17. http://dx.doi.org/10.4028/www.scientific.net/msf.553.112.

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The effective conductivity of 2D doubly periodic porous materials with temperature dependent material properties is investigated. An arbitrary number of disjoint parallel cylindri- cal pores in a representative cell is considered. A multiply connected unbounded domain in the complex plane can serve as a geometrical description of such kind of materials. The problem of determination of the effective conductivity can be reduced to a boundary value problem for the Laplace equation on the multiply connected domain. This problem is analytically solved by the method of functional equations. An explicit formula for the effective conductivity is found. It contains the basic models’ parameters and elliptic Eisenstein functions.

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26

Krylov, V. P. "Modelling of electromagnetic properties of multicomponent material." Industrial laboratory. Diagnostics of materials 84, no. 7 (August 8, 2018): 38–41. http://dx.doi.org/10.26896/1028-6861-2018-84-7-38-41.

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Current theories of heterogeneous media consider non-uniform materials as natural and artificially synthesizable structures. Nowadays, synthesis of the non-uniform multicomponent materials with given electrodynamic properties and characterized by magnetic and dielectric permeability, is gaining increasing development. When modeling a multicomponent structure as a uniform material with effective dielectric permeability (ignoring the magnetic properties) using the developed models for the components with known dielectric permeability, the errors arise in calculation of the transmission coefficient of a plane wave through the antenna dome wall. We present a heuristic model based on the laws of optics which is intended for simultaneous determination of the effective magnetic and dielectric permeability of multicomponent material in contrast to known models describing statistically non-uniform media only for one electrodynamic parameter. The electrodynamic model developed for description of the effective magnetic and dielectric permeability of non-uniform material suggests a possibility of characterizing a polarized material with the total dipole moment arising in alternating field and expressing the Brewster angle as a the sum of the polarization angles proportional to volume content the mixture components.

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27

Manychová, Monika, and Ondřej Fuciman. "Determination of Capillary Conductivity Coefficient by Using Electromagnetic Microwave Radiation." Applied Mechanics and Materials 861 (December 2016): 231–38. http://dx.doi.org/10.4028/www.scientific.net/amm.861.231.

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Moisture in building structures affects negatively construction material physical properties, particularly thermally insulation properties. The porous structure of most building materials distinguishes by the ability to absorb water in liquid and gaseous state into its internal cavities, to fill the accumulative space of pores, to transport moisture and to re-transmit to the surroundings. The moisture characteristics of building materials are the base for evaluation of building structure thermal insulation properties. The moisture spreading via capillary conduction is the most significant material parameter of a moisture appraisal. However, it is necessary to incorporate also spreading the liquid phase into the moisture appraisal for certain structure material compositions. The article deals with determination of capillary conductivity coefficient by using electromagnetic microwave radiation. The radiation passed through a wet sample is detected and then the value of capillary conductivity coefficient is determined. The coefficient of capillary conductivity is property dependent on several physical parameters, but primarily on the moisture.

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28

Lukovičová, Jozefa, Gabriela Pavlendová, and Stanislav Unčík. "Experimental Determination of Innovative Plaster Moisture Expansion." Advanced Materials Research 1122 (August 2015): 153–56. http://dx.doi.org/10.4028/www.scientific.net/amr.1122.153.

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The problem of the reconstruction of the historical building surface layers is in material compatibility. The basics of the convenient choice of materials for reconstruction is understanding some physical properties of used materials. The crucial properties are moisture and temperature induced deformation. The effect of moisture sorption on the elastic behavior of innovative plaster for renovation is investigated. The measurements are performed for moisture content from the dry state to the saturation water content and temperature range of 10 - 40°C.

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29

Rubáš, Pavel, and Jaroslav Výborný. "Determination of the properties of acoustic materials - airflow resistance of cellulose based insulation material." MATEC Web of Conferences 282 (2019): 02025. http://dx.doi.org/10.1051/matecconf/201928202025.

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The air flow resistance is a fundamental acoustic parameter to understanding the properties of cellulose based insulation material, it is useful for research and development to perform acoustic performance prediction and for calculation modelling. There is a connection between structure of cellulose based insulation material and its acoustic characteristics. Specific air flow resistance is also a parameter for the quality of cellulose based insulation which is used for factory production control because there is also strong connection between specific air flow resistance and density of produced material. Experimental measurement of airflow resistance has been performed according to the direct method of the EN 29053 standard where low and constant air flow is passed through cellulose based insulation with a specific section.

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30

Bredl, Julian, Manuel Dany, Hans-Christian Schneider, and Oliver Kraft. "Instrumented indentation at elevated temperatures for determination of material properties of fusion relevant materials." Nuclear Materials and Energy 9 (December 2016): 502–7. http://dx.doi.org/10.1016/j.nme.2016.09.011.

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31

V. P.,, Eremin, and Bolshikh A. A. "Calculation and Experimental Determination of Damping Properties for Polymer Composite Material." International Journal of Mechanics 16 (June 25, 2022): 75–81. http://dx.doi.org/10.46300/9104.2022.16.9.

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In all real materials, energy is dissipated during deformation. You can think of it as a kind of internal friction. The load curve for the full period does not fit into a straight line. Usually, to describe the damping in the material, a model is used in terms of the hysteresis loss coefficient, since the energy losses per period depend weakly on frequency and amplitude. At the same time, the mathematical description in the loss factor model is based on complex values, that is, it implies only the case of harmonic vibration. Therefore, this damping model can only be used for frequency-domain studies. Rayleigh damping is a simple approach to forming the damping matrix as a linear combination of the mass matrix and the stiffness matrix. This damping model is unrelated to any physical loss mechanisms. In this paper, we consider a model of a mathematical pendulum for the experimental and computational determination of the damping properties of a polymer composite material. For the experimental part, a stand was designed and created that simulates the excitation of a plate made of a polymer material. The computational repetition of the experiment was performed by the finite element method and using the analytical Runge-Kutta method of the 4th and 5th order.

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32

Szavá, Renata Ildikó, Ioan Szavá, Sorin Vlase, and Arina Modrea. "Determination of Young’s Moduli of the Phases of Composite Materials Reinforced with Longitudinal Fibers, by Global Measurements." Symmetry 12, no. 10 (September 27, 2020): 1607. http://dx.doi.org/10.3390/sym12101607.

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The properties of a composite material are determined by the properties of the constitutive materials. In engineering practice, there are many situations in which we have composite material, but we do not have information about the properties of each phase component. The measurements we can make in such cases are on the existing material, thus being able to determine, experimentally, the global physical properties of the composite. The possibility of realizing an estimate of the mechanical properties of each component poses a problem if we start from these measurements. The paper proposes a method to achieve this, starting from the theoretical estimates established in the literature, then illustrated by an example to determine the properties of wood. Wood is a transverse isotropic material and therefore the constitutive law has symmetries that are manifested in the decrease of the number of parameters that define the stress-strain liason, defined only by five independent parameters. The proposed method can be extended to a diversity of models and materials used in the study of composite materials.

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33

Lin, J., J. Luo, and Trevor A. Dean. "Techniques for Determining Mechanical Properties of Power-Law Materials by Instrumented Indentation Tests." Key Engineering Materials 340-341 (June 2007): 555–62. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.555.

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A novel optimization approach is proposed to extract mechanical properties of a power law material from its given experimental nano-indentation P-h curves. A set of equations have been established to relate the P-h curve to mechanical properties, E, σ y and n, of a material. Using the proposed optimization approach, convergence studies were carried out for the determination of the mechanical properties of materials. It was found that the mechanical properties of an elastic-plastic material usually cannot be uniquely determined using a single loading and unloading P-h curve. Thus a technique has also been developed to determine the material properties from indentation p-h curves using indenters with two different angles. This enables the mechanical properties of materials to be uniquely determined.

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34

Dolocan, Voicu. "Determination of material properties by using the reflection pulse method." Review of Scientific Instruments 65, no. 11 (November 1994): 3505–10. http://dx.doi.org/10.1063/1.1144529.

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Lichtenegger, H. C. "Biomineralization and self-assembled nanostructures – structure determination and material properties." Acta Crystallographica Section A Foundations of Crystallography 62, a1 (August 6, 2006): s39. http://dx.doi.org/10.1107/s0108767306099211.

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Guiseppi-Elie, Anthony, Gary E. Wnek, and Sheldon P. Wesson. "Wettability of polyacetylene: surface energetics and determination of material properties." Langmuir 2, no. 4 (July 1986): 508–13. http://dx.doi.org/10.1021/la00070a021.

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Acharya, Bharat R., Jae-Hoon Kim, and Satyendra Kumar. "Material-independent determination of anchoring properties on rubbed polyimide surfaces." Physical Review E 60, no. 6 (December 1, 1999): 6841–46. http://dx.doi.org/10.1103/physreve.60.6841.

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Gong, Y. P., C. J. Hyde, W. Sun, and T. H. Hyde. "Determination of material properties in the Chaboche unified viscoplasticity model." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 224, no. 1 (September 11, 2009): 19–29. http://dx.doi.org/10.1243/14644207jmda273.

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Muhsin, Saja A., Paul V. Hatton, Anthony Johnson, Nuno Sereno, and Duncan J. Wood. "Determination of Polyetheretherketone (PEEK) mechanical properties as a denture material." Saudi Dental Journal 31, no. 3 (July 2019): 382–91. http://dx.doi.org/10.1016/j.sdentj.2019.03.005.

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Carlsson, Björn, and Pavel Huml. "Determination of the Material Properties of an Anisotropic Metal Wire." CIRP Annals 45, no. 1 (1996): 231–33. http://dx.doi.org/10.1016/s0007-8506(07)63053-4.

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Newell, K. J., A. N. Sinclair, Y. Fan, and C. Georgescu. "Ultrasonic Determination of Stiffness Properties of an Orthotropic Viscoelastic Material." Research in Nondestructive Evaluation 9, no. 1 (1997): 25–39. http://dx.doi.org/10.1080/09349849708968119.

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Heinrich, C., A. M. Waas, and A. S. Wineman. "Determination of material properties using nanoindentation and multiple indenter tips." International Journal of Solids and Structures 46, no. 2 (January 2009): 364–76. http://dx.doi.org/10.1016/j.ijsolstr.2008.08.042.

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Sklarczyk, Christoph. "Determination of Material Properties like Permittivity and Density with Microwaves." Journal of Modern Physics 05, no. 06 (2014): 335–40. http://dx.doi.org/10.4236/jmp.2014.56043.

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Zobitz, Mark E., Zong-Ping Luo, and Kai-Nan An. "Determination of the Compressive Material Properties of the Supraspinatus Tendon." Journal of Biomechanical Engineering 123, no. 1 (October 3, 2000): 47–51. http://dx.doi.org/10.1115/1.1339816.

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A methodology was developed for determining the compressive properties of the supraspinatus tendon, based on finite element principles. Simplified three-dimensional models were created based on anatomical thickness measurements of unloaded supraspinatus tendons over 15 points. The tendon material was characterized as a composite structure of longitudinally arranged collagen fibers within an extrafibrillar matrix. The matrix was formulated as a hyperelastic material described by the Ogden form of the strain energy potential. The hyperelastic material parameters were parametrically manipulated until the analytical load-displacement results were similar to the results obtained from indentation testing. In the geometrically averaged tendon, the average ratio of experimental to theoretical maximum indentation displacement was 1.00 (SD: 0.01). The average normalization of residuals was 2.1g (SD: 0.9g). Therefore, the compressive material properties of the supraspinatus tendon extrafibrillar matrix were adequately derived with a first-order hyperelastic formulation. The initial compressive elastic modulus ranged from 0.024 to 0.090 MPa over the tendon surface and increased nonlinearly with additional compression. Using these material properties, the stresses induced during acromional impingement can be analyzed.

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Paszun, D., and C. Dominik. "Numerical determination of the material properties of porous dust cakes." Astronomy & Astrophysics 484, no. 3 (April 16, 2008): 859–68. http://dx.doi.org/10.1051/0004-6361:20079262.

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Hong, Changshou, Xiangyang Li, Guoyan Zhao, Fuliang Jiang, Ming Li, Shuai Zhang, Hong Wang, and Kaixuan Liu. "Preparation and multi-properties determination of radium-containing rocklike material." IOP Conference Series: Earth and Environmental Science 121 (February 2018): 052018. http://dx.doi.org/10.1088/1755-1315/121/5/052018.

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Leuridan, Steven, Quentin Goossens, Leonard Pastrav, Jorg Roosen, Michiel Mulier, Kathleen Denis, Wim Desmet, and Jos Vander Sloten. "Determination of replicate composite bone material properties using modal analysis." Journal of the Mechanical Behavior of Biomedical Materials 66 (February 2017): 12–18. http://dx.doi.org/10.1016/j.jmbbm.2016.10.018.

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Fiala, Lukáš, Petr Konrád, and Robert Černý. "Methods for determination of acoustic properties of building materials." MATEC Web of Conferences 282 (2019): 02061. http://dx.doi.org/10.1051/matecconf/201928202061.

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Experimental determination of acoustic properties of building materials is an important task gaining higher importance due to demand for materials suitable for constructions located in places with high level of noise, typically in urban areas and places close to the areas with heavy traffic. In this paper, two types of experimental setups are arranged, and tested on steel prism and brick block. Transmitter-receiver method is based on exciting the tested material by one period of harmonic signal and analysis of response on two accelerometers placed on the excited and the opposite side of the sample. The second method is based on measurement of the sound pressure level in a system of two reverberation chambers by precise microphones and vibration analyzer. Transmitter-receiver measurement conducted on steel sample revealed the fact that further adjustment of the measurement setup and successive analysis is necessary. Measurement in reverberation chambers is convenient for comparison of acoustic insulation ability of heterogeneous building materials.

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Kolman, Radek, Jiří Plešek, and Michal Landa. "Finite Element Computational Technology in Resonant Ultrasound Spectroscopy of Composite Materials." Materials Science Forum 482 (April 2005): 343–46. http://dx.doi.org/10.4028/www.scientific.net/msf.482.343.

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RUS−resonant ultrasound spectroscopy is a recent experimental−numerical method for the determination of moduli of elastic materials. Generally, all 21 elastic components of the elastic tensor can be determined by the numerical procedure based on the knowledge of a mechanical spectrum of a specimen. This involves the solution of a demanding inverse problem. Currently, the RUS technology allows the determination of material parameters of composite materials consisting of several layers with different material properties. In the present work, the fixed point iteration method in connection with the finite element method developed earlier is extended to optimize elastic moduli of layered materials. Properties of the fixed point iteration method are tested on a bicrystal specimen.

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Baba Babanli, Mustafa, Liubov Shumska, and Maryna Leshchenko. "Heat Treatment Technology of Porous Building Materials with Predictability of Thermophysical Properties." International Journal of Engineering & Technology 7, no. 3.2 (June 20, 2018): 501. http://dx.doi.org/10.14419/ijet.v7i3.2.14579.

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The work is devoted to theoretical and experimental research of thermophysical features of the creation of new porous heat insulating materials, precisely: research of thermodynamic parameters of the heating processes, swelling and drying of materials; substantiation of the choice of the raw mixture method formation and determination of the optimal energy parameters of the swelling process; development of mathematical models of material heat treatment process and methods of basic technological parameters determination; development of advanced technologies for thermal protection of buildings and power equipment. Experimentally determined dependencies of technological parameters of heat treatment of the raw material mixture in the discharge, its composition, which allows obtaining material with minimal thermal conductivity. Also, the resulting dependencies ensure to find the required mode of heat treatment for the given thermophysical properties. The experimental setup has been developed, which provided to determine the basic laws of heat transfer of porous material, on the basis of which data were obtained, which allow to carry out an estimation of heat transfer and exchange characteristics of the new dispersed porous material necessary for technological calculations. A complex mathematical model of the heat energy mode of the building was created, as well as a program for solving the equations of this model, which makes it possible to determine the basic energy characteristics.

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