Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32850
Title: An anisotropic damage-based plastic yield criterion and its application to analysis of metal forming process
Authors: Shen, W
Peng, LH
Tang, CY 
Keywords: Continuity tensor
Damage equivalent stress
Erichsen cupping test
Metal forming process
Plastic yield criterion
Issue Date: 2005
Publisher: Pergamon-Elsevier Science Ltd
Source: International journal of mechanical sciences, 2005, v. 47, no. 12, p. 1897-1922 How to cite?
Journal: International Journal of Mechanical Sciences 
Abstract: Based on the continuum damage mechanics (CDM), both the total damage growth force and the damage equivalent stress has been firstly derived. Material and damage are considered to be anisotropic in this theoretical model. A new damage-based plastic yield criterion, where the damage equivalent stress is taken as the yield function, and the corresponding damage evolution equation has been established. A relation between the damage variable and the plastic deformation has been proposed. This relation can be applied to obtain the damage history in terms of Moiré photo-mechanics technology in this work. In addition, from the anisotropic damage-based plastic yield criterion presented, the large-scale finite element codes ABAQUS/Explicit in conjunction with the damage experimental results has been then used to calculate some mechanical variable fields in metal forming process. It has finally been verified that the position corresponding to the maximum value in damage equivalent stress field accurately coincides with the initial place of macro-crack given by Erichsen cupping tests carried out by authors.
URI: http://hdl.handle.net/10397/32850
ISSN: 0020-7403
DOI: 10.1016/j.ijmecsci.2005.07.007
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