elastic-plastic fem for large strain 大变形弹塑性有限元法
We found: the samples experience elastic and plastic deformation processes before fracture, and the elastic strain is very large, it is about 2%.
结果表明：该合金的室温压缩变形过程表现为弹性和塑性变形，弹性应变很大，可达到2%。
An isoparametric finite element program of large elastic-plastic strain (LEPS) is used to analyse the necking of a cylindrical bar and a plate specimen under uniaxial tension.
本文用弹塑性大应变问题的等参数有限元分析程序(LEPS程序)，对平板和圆棒试件的颈缩作了较全面的分析。
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