| 具有损伤耦合效应的弹塑性蠕变问题结构分析的变分原理 |
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| 引用本文： | 曾攀,孙训方.具有损伤耦合效应的弹塑性蠕变问题结构分析的变分原理[J].固体力学学报,1992,13(2):95-100. |
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| 作者姓名： | 曾攀 孙训方 |
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| 作者单位： | 西南交通大学，西南交通大学 成都 610031，成都 610031 |
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| 摘 要： | 本文基于连续介质损伤力学中有效应力的概念,研究弹塑性蠕变问题中的损伤耦合,并应用由最优控制理论基本思想发展起来的参变量变分原理建立起用于弹塑性蠕变损伤问题结构分析的变分原理.文中给出了原理的证明.该原理的物理意义明确,表达式简单且规范,容易为数值手段实现.
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| 关 键 词： | 弹塑性 蠕变损伤 变分原理 |
THE VARIATIONAL PRINCIPLE OF STRUCTURAL ANALYSIS FOR DAMAGE-COUPLED ELASTOPLASTIC CREEP PROBLEM |
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| Zeng Pan Sun Xunfang.THE VARIATIONAL PRINCIPLE OF STRUCTURAL ANALYSIS FOR DAMAGE-COUPLED ELASTOPLASTIC CREEP PROBLEM[J].Acta Mechnica Solida Sinica,1992,13(2):95-100. |
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| Authors: | Zeng Pan Sun Xunfang |
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| Abstract: | Based on the concept of the effective stress in Continuum Damage Mechanics,the paper studies thedamage-coupled problem in elastoplastic creep.By the parametric variational principle developed fromthe optimum control theory,the numerical principle for the discussed problem has been established,theproof for which is given also.The proposed principle is easy to be put into practice by computer. |
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| Keywords: | effective stress elastoplasticity creep damage parametric variational principle |
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