Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27756
Title: Simulation of necking using a damage coupled finite element method
Authors: Tang, CY 
Fan, JP
Lee, TC
Keywords: Damage
Finite element simulation
Necking
Strain localization
Issue Date: 2003
Publisher: Elsevier
Source: Journal of materials processing technology, 2003, v. 139, no. 1-3 spec, p. 510-513 How to cite?
Journal: Journal of materials processing technology 
Abstract: Necking is a strain localization phenomenon that can cause catastrophic fracture in metal forming. Therefore, the prediction of necking is important. In the present work, an elasto-plastic constitutive equation accounting for isotropic hardening coupled with damage is implemented in the finite element code ABAQUS. A damage variable, that provides a mesoscopic description of material degradation, is used to quantify the degree of damage due to excessive strain. Using the implicit integration scheme, a cylindrical rod loaded under uniaxial tension is successfully simulated by the finite element code with a specially designed user-defined material subroutine (UMAT). In addition, the distribution of damage caused by the deformation is computed.
URI: http://hdl.handle.net/10397/27756
ISSN: 0924-0136
EISSN: 1873-4774
DOI: 10.1016/S0924-0136(03)00528-4
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