| 非比例循环载荷下塑性模量的讨论 |
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| 引用本文： | 陈旭,田涛,安柯.非比例循环载荷下塑性模量的讨论[J].固体力学学报,2001,22(2):186-190. |
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| 作者姓名： | 陈旭 田涛 安柯 |
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| 作者单位： | 天津大学化工设备与机械系, |
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| 基金项目： | 国家自然科学基金 (19872 0 49)资助课题 |
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| 摘 要： | 对1Cr18Ni9Ti不锈钢进行菱形应变路径的非比例循环本构实验，根据实验结果及分析，对双面本构模型给出了一个极限面定义，以保证屈服面不与极限面相交，在这个极限面定义及实验结果的基础上，对不同本构模型所定义的距离与塑性模量的相关性进行了讨论，表明Mroz和Chen的距离与塑性模量具有较好的相关性。
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| 关 键 词： | 双面模型 塑性模量 非比例载荷 循环塑性 本构模型 材料 |
| 修稿时间： | 1999年4月12日 |
A DISCUSSION OF PLASTICITY MODULUS UNDER NONPROPORTIONAL CYCLIC LOADING |
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| Chen Xu,Tian Tao,AN Ke.A DISCUSSION OF PLASTICITY MODULUS UNDER NONPROPORTIONAL CYCLIC LOADING[J].Acta Mechnica Solida Sinica,2001,22(2):186-190. |
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| Authors: | Chen Xu Tian Tao AN Ke |
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| Abstract: | A nonproportional cyclic constitutive experiment was con ducted on 1Cr18Ni9Ti stainless steel under rhombic strain path. Based on the exp erimental results and data analysis, a definition of limit surface is proposed i n order that yield surface does not intersect with limit surface in two-surface plasticity model. Then, the relation of plasticity modulus and distances define d in different models were discussed. It showed that the Mrózs and Chens di stances had a good correlation with the plasticity modulus. |
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| Keywords: | two surface plasticity model plasticity modulus nonproportional loading cyclic plasticity constitutive model |
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