J. P. Xu1, Y. Q. Liu1,2, S. Q. Li3, S. C. Wu4
CMES-Computer Modeling in Engineering & Sciences, Vol.38, No.3, pp. 201-216, 2008, DOI:10.3970/cmes.2008.038.201
Abstract For the first time, a special-purpose finite element simulation system CoinForm is developed to analyze the embossing process of commemorative coin, in which one-point reduced integration approach is used in solid element finite element dynamic explicit program. Viscous damping hourglass control algorithm can effectively suppress the spurious modes activated by reduced integration and the computational effort is saved about 93% compared with other method that evaluate anti-hourglass force using stabilization matrix. The embossing process of commemorative coin is then simulated and compared with results from the DEFORM 3D software, which verify the excellent performance of More >
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