| 基于M-C准则下非线性材料弹塑性矩阵的推导 |
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| 引用本文： | 方从严.基于M-C准则下非线性材料弹塑性矩阵的推导[J].安徽工程科技学院学报,2002,17(2):53-57. |
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| 作者姓名： | 方从严 |
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| 作者单位： | 芜湖职业技术学院,安徽芜湖,241001 |
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| 摘 要： | 由于利用应力不变量以统一形式表达四个屈服准则本构关系的方法应用于摩尔—库仑准则时，在计算中会有奇点出现．针对非线性材料的弹塑性变形特征和其屈服面的非正则性的特点．采用增量理论和等向强化模型，直接导出了平面应力状态下的应力应变间本构关系的弹塑性矩阵。不仅避开原方法中的奇点问题，提高了计算精度，而且概念清晰，便于运用．
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| 关 键 词： | 矩阵 奇点 特征和 正则性 非线性材料 推导 库仑 弹塑性 本构关系 屈服面 |
| 文章编号： | 1007-5240(2002)-02-0053-05 |
| 修稿时间： | 2002年1月9日 |
Deduction of elastoplastic deformation of non- linear material against M- C criterion |
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| FANG Cong,yan.Deduction of elastoplastic deformation of non- linear material against M- C criterion[J].Journal of Anhui University of Technology and Science,2002,17(2):53-57. |
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| Authors: | FANG Cong yan |
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| Abstract: | Aiming at the non-linear materials and against the Mohr-Coulomb criterion, this paper considered their characteristic of elastoplastic deformation and their yield area. The matix for their constitution relationship between stress and strain of plane stress is to be deduced. This method not only avoids the bizarre problem, but also has clearer conception and higher accuracy. So it is more applicable. |
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| Keywords: | Mohr-Coulomb criterion yield area elastoplasticity constitution relationship |
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