Implicit numerical integration of a three-invariant, isotropic/kinematic hardening cap plasticity model for geomaterials
نویسندگان
چکیده
منابع مشابه
Implicit numerical integration of a three-invariant, isotropic/kinematic hardening cap plasticity model for geomaterials
The mechanical constitutive behavior of geomaterials is quite complex, involving pressure-sensitive yielding, differences in strength in triaxial extension vs. compression, the Bauschinger effect, dependence on porosity, and other factors. Capturing these behaviors necessitates the use of fairly complicated and expensive non-linear material models. For elastically isotropic materials, such mode...
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Hardening plasticity has a long history in constitutive modelling, with many applications in geomechanics. Mathematical models of non-hardening plasticity involve the definition of a single stationary yield surface in stress-space. Examples include the conventional models of elasto-plasticity, often based on the yield criteria of Tresca, von Mises, and Mohr-Coulomb. Within the yield surface the...
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ژورنال
عنوان ژورنال: Computer Methods in Applied Mechanics and Engineering
سال: 2005
ISSN: 0045-7825
DOI: 10.1016/j.cma.2005.01.001