| 延性材料损伤模型及其实验验证 |
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| 引用本文： | 樊建平,章建军,陈传尧.延性材料损伤模型及其实验验证[J].华中科技大学学报(自然科学版),2002,30(1):78-80. |
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| 作者姓名： | 樊建平 章建军 陈传尧 |
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| 作者单位： | 华中科技大学土木工程与力学学院,武汉,430074 |
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| 摘 要： | 通过构造热力学势函数和耗散势函，得到了连续介质损伤力学基本方程，并给出了各向同性损伤演化规律，求得损伤与塑性应变的显式表达式，通过与材料实验数据比较，验证了模型的正确性。
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| 关 键 词： | 延性损伤 应力三轴性因子 失稳破坏 损伤力学 各向同性损伤演化 塑性应变 |
| 文章编号： | 1671-4512(2002)01-0078-03 |
| 修稿时间： | 2001年7月9日 |
Ductile damage model and its experimental validation |
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| Fan Jianping Zhang Jianjun Chen Chuanyao Prof., College of Civil Eng. and Mechanics,HUST,Wuhan ,China..Ductile damage model and its experimental validation[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(1):78-80. |
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| Authors: | Fan Jianping Zhang Jianjun Chen Chuanyao Prof College of Civil Eng and Mechanics HUST Wuhan China |
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| Institution: | Fan Jianping Zhang Jianjun Chen Chuanyao Prof., College of Civil Eng. and Mechanics,HUST,Wuhan 430074,China. |
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| Abstract: | A continuum isotropic ductile plastic damage model has been derived in the framework of internal variable theory of thermodynamics by constructing potential function. The damage model is based on the concept of effective stress and the principle of strain equivalence. The damage evolution rule in material is obtained. The paper shows non linear variation with respect to plastic strain compared experimental results of certain HIPS with Aluminium alloys the model is correct effect of stress triaxiality on the damage is studied. The damage model can be further applied to numerical simulation for finite element analysis. |
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| Keywords: | ductile damage microvoid triaxiality stability failure |
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