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LS-DYNA3D Simulation of Sheet Metal Forming using Damage Based User Subroutine
Technical Paper
2001-01-1129
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
LS-DYNA3D has been widely used to perform computer simulation of sheet metal forming. In the material library of LS-DYNA3D there are a number of user defined material models. In order to take full advantage of the material subroutines, it is important for the users to be able to display user defined history variables in the post processing and to establish user-defined failure criterion. In this report, the development of a damage coupled plastic model is firstly described. The damage model is then programmed in a user defined material subroutine. This is followed by performing finite element simulation of sheet metal forming with the LS-DYNA3D that has incorporated the damage coupled plastic model. The way to display the user defined history variables and how to deal with the failure criterion during the postprocessing of ETA/DYNAFORM are described. History variable distributions at several time steps are displayed and discussed in this paper.
Authors
Topic
Citation
Chow, C., Yang, X., and Chu, E., "LS-DYNA3D Simulation of Sheet Metal Forming using Damage Based User Subroutine," SAE Technical Paper 2001-01-1129, 2001, https://doi.org/10.4271/2001-01-1129.Also In
References
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