| 钟万勰,孙苏明.广义参变本构模型分析[J].计算力学学报,1991,8(2): |
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| 广义参变本构模型分析 |
| Analysis of Generalized Parametric Constitutive Models |
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| DOI：10.7511/jslx19912023 |
| 中文关键词: 参变量变分原理,广义本构关系,分级方法 |
| 英文关键词:parametric variational principle, generalized constitutive model, hierachical method |
| 基金项目:国家自然科学基金 |
| 钟万勰 孙苏明 |
大连理工大学工程力学研究所
(钟万勰)
，大连理工大学工程力学研究所(孙苏明)
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| 中文摘要: |
| 本文考察了力和(或)位移受给定条件控制的结构单元。这种控制条件可由线性化折线型本构关系表征,其本构关系是广义的,包括弹性、塑性、接触及其组合单元。借助于参变量变分原理和分级方法,具有广义本构关系单元的结构可以得解。所提出的方法还可直接用于解断裂问题。 |
| 英文摘要: |
| The paper examines the element of a body whose forces and/or displacements are governed by prescribed conditions. The conditions can be characterized by "polygonal" constitutive laws which influence behaviour of materials, such as elastic, elasto-plastic, contact problems and their combinations. Using parametric variational principle and hierarchical method,the generalized constitutive models can be solved. The proposed method can directly be applied to the fracture problems. |
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