Discrete shear transformation zone plasticity Academic Article

abstract

• 2016 Elsevier Ltd A method for solving small strain plasticity problems with plastic deformation arising from the evolution of a collection of discrete shear transformation zones (STZs) is presented. The STZs are represented as transforming Eshelby inclusions. At each instant, superposition is used to represent the solution in terms of the Eshelby inclusions, which are given analytically for an infinite elastic medium, and an image solution that enforces the prescribed boundary conditions on the finite solid of interest. The image problem corresponds to a standard linear elastic boundary value problem. Constitutive relations are specified for the kinetics of the transformation. The general three dimensional formulation is given. Solutions for compression of a plane strain block are presented that illustrate the potential of the framework.

authors

• Benzerga, Amine
• Needleman, Alan

published proceedings

• EXTREME MECHANICS LETTERS

author list (cited authors)

• Kondori, B., Benzerga, A. A., & Needleman, A.

citation count

• 8

complete list of authors

• Kondori, Babak||Benzerga, A Amine||Needleman, Alan

publication date

• December 2016

publisher

• Elsevier  Publisher

published in

• Extreme Mechanics Letters  Journal

keywords

• Amorphous Materials
• Elasticity
• Finite Element Method
• Plasticity
• Shear Transformation Zones

Digital Object Identifier (DOI)

• 10.1016/j.eml.2016.04.007

start page

• 21

end page

• 29

volume

• 9

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.eml.2016.04.007