Results 251 to 260 of about 543,247 (306)
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Viscoplastic Modeling With Strain Rate-History Dependency
Journal of Applied Mechanics, 1983The strain rate-history effect on the plastic behavior of some classes of viscoplastic materials is incorporated into the power formula of Bodner’s model by adopting an integral-memory type equation for the “hardening” state variable. The modified model is incorporated into a finite element program.
Ghoneim, H., Matsouka, S., Chen, Y.
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Localization in strain-rate-dependent solids
Computer Methods in Applied Mechanics and Engineering, 1991Abstract The localization of the deformation in strain-rate-dependent solids evolves through three distinct phases. Its onset is signalled by the first deviation from a homogeneous mode of deformation, which we propose to pinpoint by means of a linear perturbation analysis. The second stage, marked by a sharp increase of the effective strain rate in ‘
Yves M. Leroy, Olivier Chapuis
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Temperature-dependent strain rate discontinuity
Materials Science and Engineering: A, 1988Abstract Measurement of strain rate discontinuity in several materials, at and below room temperature, confirms the general occurrence of athermal (stress rate dependent) inelastic strain. Values of both thermal (stress dependent) and athermal strain rate have been measured.
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Strain rate dependent properties of human craniovertebral ligaments
Journal of the Mechanical Behavior of Biomedical Materials, 2013Craniovertebral ligaments were tested to failure under tensile loading. Ligaments tested included: transverse ligament, anterior atlanto occipital membrane, posterior atlanto occipital membrane, capsular ligaments between Skull-C1 and C1-C2, anterior atlantoaxial membrane, posterior atlantoaxial membrane and the tectorial membrane/vertical cruciate ...
Stephen F E, Mattucci +3 more
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Strain Rate Dependent Shear Plasticity in Graphite Oxide
Nano Letters, 2016Graphene oxide film is made of stacked graphene layers with chemical functionalities, and we report that plasticity in the film can be engineered by strain rate tuning. The deformation behavior and plasticity of such functionalized layered systems is dominated by shear slip between individual layers and interaction between functional groups.
Soumya, Vinod +8 more
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Rate‐ and temperature‐dependent strain hardening of polycarbonate
Journal of Polymer Science Part B: Polymer Physics, 2012AbstractThe modeling and quantification of a viscous contribution to strain hardening is discussed. Traditional strain hardening models, based on rubber‐elasticity, show serious deviations from the experimentally observed large‐strain response of glassy polymers.
Senden, D.J.A. +3 more
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A temperature and strain rate dependent strain hardening law
International Journal of Pressure Vessels and Piping, 1992Abstract A temperature and strain rate dependent strain hardening law is proposed to describe stress-strain-temperature-strain rate relations. The formulation is purely empirical, based on experimental data of an alloy steel. Agreement between the proposed temperature-strain rate dependent strain hardening law and experimental data is very good over ...
CHO, YH, KIM, KT
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Strain rate dependency on stress–strain relations of polypropylene
Journal of Applied Polymer Science, 1971AbstractTrue constant strain rate tensile tests of polypropylene up to 2% initial strain were performed to investigate the strain rate dependency of the initial stress–strain gradient dσ/dε with the aid of “slack grip.” The experimental results fairly agree with even the simplest mechanical model analysis with three parameters, showing the conspicuous ...
Akira Kobayashi, Nobuo Ohtani
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Temperature and strain rate dependent stress-strain behaviour of nitinol
Materials Today: Proceedings, 2021Abstract This paper reports on molecular dynamic simulation approach for the modeling and simulation of nanocrystalline Nitinol (NiTi). The relation between stress–strain behaviour of NiTi at the multiple steps of temperature ranging from 300 K to 1300 K at a particular strain rate 1 × 10-1 sec-1 and observed at a fixed temperature of 300 K with the ...
Mahesh Kumar Gupta +5 more
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Mechanical properties of trabecular bone. Dependence on strain rate
Journal of Biomechanics, 1991The effect of strain rate (epsilon) and apparent density (rho) on stiffness (E), strength (sigma u), and ultimate strain (epsilon u) was studied in 60 human trabecular bone specimens from the proximal tibia. Testing was performed by uniaxial compression to 5% specimen strain. Six different strain rates were used: 0.0001, 0.001, 0.01, 0.1, 1, and 10 s-1.
F, Linde +4 more
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