Ahatraet-In some elastoplastic systems (typically rocklike media) the elastic properties are aiIected by plastic yielding. This “coupling ” phenomenon is dealt with in this paper in the context of the incremental theory of plasticity with nonassociated (lacking normality) flow laws. Some extremum properties and uniqueness conditions are given for solution of the rate problem. Stability conditions are established. The results achieved are equally applicable to media with nonassociative flow rules without coupling, with or without worksoftening, and are believed to be novel in this more traditional rea. The results are cast into algebraic formulations for finite element models, in view of their practical applications. 1
Under certain conditions, an indeterminate solution exists to the equations of motion for dynamic el...
This dissertation focuses on the implications of non-associated flow on plastic deformation. The phy...
International audienceAn efficient implementation of the operator split procedure for boundary value...
Incremental elastoplastic stress-strain relations are studied which allow for non association of pla...
A non-local theory of plasticity that incorporates effects of incompatibility of plastic (or elastic...
A non-local theory of plasticity that incorporates effects of incompatibility of plastic (or elastic...
International audienceRock joint constitutive modelling is discussed through two new rock joint cons...
International audienceRock joint constitutive modelling is discussed through two new rock joint cons...
In this paper, the field equations of the generalized coupled thermoplasticity theory are derived us...
Elastic-plastic rate-independent materials with isotropic hardening/softening of nonlocal nature are...
Abstract: The global and local conditions of uniqueness and the criteria excluding a possibility of ...
Elastic-plastic rate-independent materials with isotropic hardening/softening of nonlocal nature are...
A new methodology for computational plasticity of nonassociated frictional materials is presented. T...
Bibliography: pages 151-162.A new internal variable theory of plasticity is presented. This theory i...
International audienceA non-equilibrium theory of isothermal and diffusionless evolution of incohere...
Under certain conditions, an indeterminate solution exists to the equations of motion for dynamic el...
This dissertation focuses on the implications of non-associated flow on plastic deformation. The phy...
International audienceAn efficient implementation of the operator split procedure for boundary value...
Incremental elastoplastic stress-strain relations are studied which allow for non association of pla...
A non-local theory of plasticity that incorporates effects of incompatibility of plastic (or elastic...
A non-local theory of plasticity that incorporates effects of incompatibility of plastic (or elastic...
International audienceRock joint constitutive modelling is discussed through two new rock joint cons...
International audienceRock joint constitutive modelling is discussed through two new rock joint cons...
In this paper, the field equations of the generalized coupled thermoplasticity theory are derived us...
Elastic-plastic rate-independent materials with isotropic hardening/softening of nonlocal nature are...
Abstract: The global and local conditions of uniqueness and the criteria excluding a possibility of ...
Elastic-plastic rate-independent materials with isotropic hardening/softening of nonlocal nature are...
A new methodology for computational plasticity of nonassociated frictional materials is presented. T...
Bibliography: pages 151-162.A new internal variable theory of plasticity is presented. This theory i...
International audienceA non-equilibrium theory of isothermal and diffusionless evolution of incohere...
Under certain conditions, an indeterminate solution exists to the equations of motion for dynamic el...
This dissertation focuses on the implications of non-associated flow on plastic deformation. The phy...
International audienceAn efficient implementation of the operator split procedure for boundary value...