Acta Mechanica, ( ISI ), Volume (225), No (6), Year (2014-12) , Pages (1699-1733)

Title : ( Computational plasticity of mixed hardening pressure-dependency constitutive equations )

Authors: Mohaamad Rezaiee Pajand , Ferdinando Auricchio , Mehrzad Sharifian Torghabeh , Mehrdad Sharifian Torghabeh ,

Citation: BibTeX | EndNote

Abstract

In the present study, two semi-implicit schemes, based on the exponential maps method, are derived for integrating the pressure-sensitive constitutive equations. In spite of the fact that the consistent tangent operator is necessary to preserve the quadratic rate for the asymptotic convergence of the Newton-Raphson solution in the finite element analyses, there exists no derivation of this operator for the exponential-based integrations of the pressure-sensitive plasticity in the literature. To fulfill this need, the algorithmic tangent operators are extracted for the new semi-implicit as well as the former exponential-based integrations. Moreover, for the accurate integration presented by Rezaiee-Pajand et al. (Eur J Mech A Solids 30:345–361, 2011),the consistent tangent operator is obtained. Eventually, all the investigations are assessed by a broad range of numerical tests.

Keywords

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@article{paperid:1040276,
author = {Rezaiee Pajand, Mohaamad and Ferdinando Auricchio and Sharifian Torghabeh, Mehrzad and Sharifian Torghabeh, Mehrdad},
title = {Computational plasticity of mixed hardening pressure-dependency constitutive equations},
journal = {Acta Mechanica},
year = {2014},
volume = {225},
number = {6},
month = {December},
issn = {0001-5970},
pages = {1699--1733},
numpages = {34},
keywords = {.},
}

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%0 Journal Article
%T Computational plasticity of mixed hardening pressure-dependency constitutive equations
%A Rezaiee Pajand, Mohaamad
%A Ferdinando Auricchio
%A Sharifian Torghabeh, Mehrzad
%A Sharifian Torghabeh, Mehrdad
%J Acta Mechanica
%@ 0001-5970
%D 2014

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