Simulation of crack propagation using a gradient-enriched ductile damage model based on dilatational strain
Simulation of crack propagation using a gradient-enriched ductile damage model based on dilatational strain
复制标题
使用基于膨胀应变的梯度富集延性损伤模型模拟裂纹扩展
DOI:
10.1016/j.engfracmech.2012.07.004
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发表时间:
2012
影响因子:
5.4
通讯作者:
M. Kuna
中科院分区:
文献类型:
--
作者:
T. Linse;G. Hütter;M. Kuna
An implicit gradient formulation based on the micro-dilatational approach is applied to the Gurson–Tvergaard–Needleman ductile damage model. The stability of the model is proven analytically for the considered class of materials. The damage model is implemented in an implicit finite-element code in an Updated Lagrangian formulation incorporating an objective time integration scheme and consistent tangent moduli for quadratic convergence. The model is applied to simulate a fracture mechanical test of a typical pressure vessel steel. The investigations are focused on the evolution of ductile damage and stress state at the crack tip. The results show that the model captures the different stages of crack initiation and propagation realistically. A condition for mesh-convergence in terms of the internal length parameter is suggested.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
F. Reusch
通讯作者:
F. Reusch
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
T. Linse;M. Kuna;J. Schuhknecht;H. Viehrig
通讯作者:
H. Viehrig
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
G. Pijaudier;Z. Bažant;M. Tabbara
通讯作者:
M. Tabbara
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
Huang Yuan;D. Mendelsohn
通讯作者:
D. Mendelsohn
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
F. Reusch;C. Hortig;B. Svendsen
通讯作者:
B. Svendsen