Strain rate potentials
Orthotropic strain rate potentials using multiple linear transformations
... Figure 5. Scaled ε ɺ xz − ε ɺ plot of plastic strain-rate potentials for the mild steel DC06. yz In contrast to the regular parameter identification method that uses mechanical test data, it is ...
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Time integration scheme for elastoplastic models based on anisotropic strain-rate potentials
... the strain-rate potential approach can be computationally more ...of strain-rate potentials has been also tackled in the framework of ...for strain-rate-potential-based ...
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Numerical simulation of sheet metal forming using anisotropic strain-rate potentials
... 26 In spite of these two extreme examples, the experiment-based identification technique consistently provides parameter sets whose predictions better reproduce the experimental results (as compared to the TBH-based ...
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Elastic-plastic ductile damage model based on strain-rate plastic potential
... plastic strain rate potential can be associated to any convex stress ...a strain rate potential can be used instead of a classical stress potential to describe the plastic response of ...
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Non-quadratic anisotropic potentials based on linear transformation of plastic strain rate
... anisotropic strain rate potentials based on linear transformations of the plastic strain rate tensor were reviewed in general ...plastic strain rate state (5 independent ...
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Oxidation Assisted Intergranular Cracking in Alloy 718: Effects of Strain Rate and Temperature
... propagation rate and the cracking path have shown that the occurrence and kinetics of the local intergranular oxi- dation involved in the damaging process do not vary following clas- sical oxidation laws, but ...
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Effects of strain rate and temperature on the mechanical behavior of high-density polyethylene
... high strain rate tensile tests, tensile machine was equipped with a specific ...with strain rates varying from ...the strain rate the molecular mobility of the HDPE chains is ...
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High strain rate micro-compression for crystal plasticity constitutive law parameters identification
... Nanomechanical tests such as micropillar compression could provide such local measurements. The test consists in compressing a micron-sized pillar using an instrumented diamond flat-punch to generate a load displacement ...
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Use of foil strain gauges in ice over a wide loading rate
... Use of foil strain gauges in ice over a wide loading rate Sinha, N. K. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions ...
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Full-field strain measurement and identification of composites moduli at high strain rate with the Virtual Fields Method
... measure strain maps of small magni- tude [ 12 ...relevant strain maps with a good resolution (around 10 −4 ) that were in accordance with the results given by a finite element ...
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Polypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects
... so large that the gas must escape. From these observations it could be noticed that gas escapes in a non-continuous way in contrast to quasi-static tests but with a delay such as during the flywheel tests. Nevertheless ...
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The Influence of rate of strain on effective stresses in sensitive clay
... The Influence of rate of strain on effective stresses in sensitive clay Crawford, C. B. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis ...
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Modeling grain size and strain rate in linear friction welded Waspaloy
... 12 . The measured grain sizes for different testing conditions were significantly different from the calcu- lated ones. For example, for the isothermal hot com- pression temperature of 1373 K (1100 °C), strain ...
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Constant strain- and stress-rate compressive strength of columnar-grained ice
... without any inelastic deformation. That condition, according to the present theory, will be achieved at an infinitely high rate of loading [ 3 l ] , particularly at the high [r] ...
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The strain rate and temperature dependence of Young's modulus of ice
... Access and use of this website and the material on it are subject to the Terms and Conditions set forth at The strain rate and temperature dependence of Young's modulus of ice Traetteberg, A.; Gold, L. W.; ...
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Influence of strain rate on P92 microstructural stability during fatigue tests at high temperature
... The macroscopic strain rate sensitivity is well predicted by the model. However, cyclic softening is not taken into account in this present study yet: the first improvement of the model will be to implement ...
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A constitutive model for Ti6Al4V considering the state of stress and strain rate effects
... proposed by Calamaz et al. [10], and then applied it in orthogonal cutting simulation of Ti6Al4V alloy under cryogenic cooling conditions. These works do not account for the damage part of the constitutive model, which ...
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Microstructural and experimental analysis of strain rate effect for short glass fiber reinforced polypropylene
... b Arts et Métiers ParisTech, PIMM - UMR CNRS 8006, 151 Boulevard de L'Hôpital, Paris 75013, France Abstract The scope of this work is to study glass ber reinforced polypropylene com- posites in low and high speed ...
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Effect of small strain rate variations on the identification of the compressive behaviour of Ti6Al4V
... Equation 1 allows computing the height increase or reduction X ep t of the specimen (note that negative value is associated with compression) as a function of time necessary to impose on the sample for a test at a ...
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Thixoforming of Steel: New Tools Conception to Analyse Thermal Exchanges and Strain Rate Effects
... Handle ID: . http://hdl.handle.net/10985/9050 To cite this version : Pierre CEZARD, Régis BIGOT, Eric BECKER, Stéphane MATHIEU, Jean-Christophe PIERRET, Ahmed RASSILI - Thixoforming of Steel: New Tools Conception to ...
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