Theory of Plasticity

Elastoplastic Buckling Analysis of Plates Involving Free Edges by Deformation Theory of Plasticity (RESEARCH NOTE)

Abstract   In this paper elastoplastic buckling of rectangular plates with different boundary conditions are investigated. Differential governing equations of plate are obtained on the basis of general loading and according to deformation theory (DT) of plasticity. Various loading conditions contain uniaxial, biaxial and shear are studied. The employed material is AL7075T6 which is usually used...

Plasticity Theory at Small Scales

Information theory and Visual Plasticity

The relevance of information theory to neural networks has become more apparent in recent years. This theory has become important in analysing and understanding the nature of the neuronal code that is relayed between cortical layers and the nature of the learning goals that guide neuronal learning and synaptic modification. The rapid advance in recent years of single and multiple electrode reco...

A variational Cam-clay theory of plasticity

We present a finite deformation constitutive theory for non-cohesive granular media. The material model falls in the family of the so-called Cam-clay theories. As typical of Cam-clay models, soil is assumed to be frictional with a logarithmic-type compression. The same state boundary surface––described by ellipses––is taken as yield and plastic potential surface. Hardening is related only to pl...

Mathematical Theory of Plasticity for Frictional Materials

We consider the extension of the classical mathematical theory of plasticity to frictional materials. It is shown that the apparently nonassociated plastic flow characteristics often observed in such materials can be accounted for by models that are variational in structure. In addition, the theory predicts a number of new terms and functional relationships that appear to have particular releva...