Transactions of Materials and Heat Treatment

Title：Study on FEM simulation arithmetic of metal plasticity

Authors： Fan Wei-fu1 QIAO Guo-qian2 LI Gang-sheng2(1.School of Electric and Information Zhongyuan Institute of Technology Zhengzhou 450007 China 2.School of Mechanical and Electronic Zhongyuan Institute of Technology Zhengzhou 450007 China)

Unit：

KeyWords： metal plasticity finite element method(FEM) Markov principle

ClassificationCode：TG306;TB115

year,vol(issue):pagenumber：2007,32(3):96-99

Abstract：

Markov principle and the theory of rigid-plastic FEM equation of the metal plastic forming were introduced.The discrete and linear arithmetic as well as the solution of the rigid-plastic FEM equation were explained.Combined with the finite element mesh unit function,the stress field,the strain field and the strain rate increment were obtained from solving the node velocity increment of the rigid equation.At the same time,the procedure of rigid-plastic finite element simulation and the development trend of the arithmetic were shown.A fast method for restraining the algorithm was still needed when rigidity equation was solved simultaneously to ensure the simulation precision.

Funds：

河南省科技厅基础研究项目(0311051000)

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