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摘要：
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给出了一种基于欧拉描述的有限变形平面应变有限元算法 ,并用它模拟了推土机链条节的锻造成形过程 ,得到了连杆锻造成形过程中断面金属流动规律 ,模拟结果同试验一致 ,验证了该算法模拟锻造成形过程的可行性
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In this paper,a finite deformation finite element algorithm of plane strain mode was presented The forging process of tractor chain was simulated by using this algorithm,much information about metal forging process were abtained,they were in good accordance with the experiments It is shown that this algorithm is suitable for simulating the metal forging process
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基金项目：
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作者简介：
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参考文献：
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1 MAFAP锻造成形有限元用户手册 .1997
2 黄文彬等 .铅的有限变形试验研究 ,北京地区第七届力学学会论文集 ,1997.
3 Heinstein Martin W,Yang Henry T Y.Plane strain finite elementsimulation of shear band formulation during metalforming.International Journal of Numerical Methods inEngineering,1992 (33) :719～ 737
4 L ee Y K.Finite elastoplastic deformation in metal formingprocesses with a complete formulation for slidingfriction.International Journal of Plasticity,1991(7) :5 6 7～ 6 0 5
5 黄文彬 .杆件在大变形时的弹性系数 .力学与实践 ,1996 (18) :6～ 10
6 殷有泉 .固体力学非线性有限元法引论 .北京 :北京大学出版社 ,清华大学出版社 ,1987
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