Abstract: Constitutive modeling and related numerical issues in conjunction with the macroscopic analysis and simulation of cold compaction and subsequent solid phase sintering of hard-metal are discussed. ...

Abstract: The paper describes a new finite element, derived from the classical constant strain element, in the context of localization analysis of elastic-plastic materials. The formulation is based on the “enhanced strain” concept, ...

Abstract: Using the fully implicit rule for temporal integration, one may define a class of simple plasticity models, for which an incremental potential energy can be constructed. This potential has, in general, multiple stationary ...

Abstract: Conditions for plastic localization, in terms of the possibility for discontinuous bifurcations of the incremental strain rate field, are given for the MRS‐Lade model. The susceptibility to bifurcation is examined along ...

Abstract: A new technique for modeling localized deformations within a softening band is described, where softening is attributed to a displacement discontinuity within an element. Concepts such as fracture strain are not included ...

Abstract: Properties of discontinuous bifurcation solutions for elastic‐plastic solids are established for conventional test conditions that are pertinent to experiments on soil, powder, and rock. Typically, such conditions are ...

Abstract: Characteristics of finite element solutions involving strain‐softening plasticity are discussed with reference to strain localization and stability for simple uniaxial problems. The stability of localized and nonlocalized ...

Abstract: Analysis of laboratory experiments and model structures on cohesionless granular materials conducted at very low effective stress levels have shown that their response to loading differs significantly from that observed ...