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Abstract：
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In this paper,3～8 nodes plane stress elastoplastic model is presented The plastic area of thin plate with hole in its central suffered from distributed load in its plate is simulated, the result is in good accordance with the experiment It is important to guide machine design and to control the plastic failure
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Funds：
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河南省科委科技攻关项目 (991 1 50 2 2 3)
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AuthorIntro：
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Reference：
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1 殷有泉固体力学非线性有限元法引论北京:清华大学出版社,1987
2 DRJ欧文著曾国平,刘忠,徐家礼译黄文彬校塑性力学有限元———理论与应用北京:兵器工业出版社,1989
3 李育文等一种微分型全量弹塑性有限元算法及其应用锻压技术,2000,25(1):5051
4 JCSimoAframeworkforelastoplasticdisipationandthemultiplica tiondecompositionPartOneComputMethsApplMechEngng,1988,66:199～219
5 JCSimoAframeworkforelastoplasticdisipationandthemultiplica tiondecompositionPartTwoComputMethsApplMechEngng,1988,68:1～31
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