A damage coupled orthotropic finite plasticity model for sheet metal forming: CDM approach
A damage coupled orthotropic finite plasticity model for sheet metal forming: CDM approach
复制标题
用于板材成形的损伤耦合正交各向异性有限塑性模型:CDM 方法
DOI:
10.1016/j.commatsci.2009.12.022
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发表时间:
2010
影响因子:
3.3
通讯作者:
Tekkaya
中科院分区:
文献类型:
--
作者:
Soyarslan;Tekkaya
A framework for orthotropic finite plasticity coupled with a Lemaitre type isotropic ductile damage is presented in a thermodynamically sound setting for sheet metal forming. The finite plasticity utilizes Green–Naghdi type additive decomposition in the logarithmic Lagrangean strain space, which allows adaptation of the return mapping schemes of damage coupled infinitesimal plasticity. Hydrostatic stress state and principal stress state dependent unilateral damage evolutionary conditions are efficiently formulated without need for repetitive tensor transformations, taking advantage of the eigenvalue equivalence in between the stress measure conjugate to the logarithmic Lagrangean strain and the Kirchhoff stress. For the sake of completeness a Perzyna type viscous regularization is also elaborated. A three-step, staggered local integration algorithm, composed of elastic prediction, plastic correction and damage deterioration, is performed for return mapping at integration points. To this end, the framework is implemented as a VUMAT subroutine for ABAQUS/Explicit and used in a set of simulations. Besides proving the applicability range of the methodology, the outcomes show that Lemaitre model, once enhanced with unilateral damage evolutionary conditions, gives physically meaningful results in cup drawing simulations.
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DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
J. Schröder;F. Gruttmann;Jochen Löblein
通讯作者:
Jochen Löblein
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
A. Ragab
通讯作者:
A. Ragab
DOI:
10.1016/j.cma.2009.06.006
发表时间:
2009-09
影响因子:
7.2
作者:
Manfred H. Ulz
通讯作者:
Manfred H. Ulz
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Löblein;J. Schröder;F. Gruttmann
通讯作者:
F. Gruttmann
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
Somnath Ghosh;M. Predeleanu
通讯作者:
M. Predeleanu