| 有限变形弹性体变形时边界力的处理 |
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| 引用本文： | 徐志洪.有限变形弹性体变形时边界力的处理[J].南京理工大学学报(自然科学版),2002,26(5):457-460. |
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| 作者姓名： | 徐志洪 |
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| 作者单位： | 南京理工大学理学院,南京,210094 |
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| 摘 要： | 在有限弹性变形中 ,边界力的方向与密度将随弹性体的变形而发生显著变化。在对有限弹性体的非线性有限元分析时 ,必须考虑变形对边界力的影响。该文推导了作用在半无限空间表面上的边界力在有限弹性变形时的解析增量表达式 ,并详细讨论了 2种边界力的情况
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| 关 键 词： | 有限变形 边界条件 有限元 |
| 修稿时间： | 2001年5月28日 |
The Expression of Force Boundary Condition in the Finite Deformation |
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| XuZhihong.The Expression of Force Boundary Condition in the Finite Deformation[J].Journal of Nanjing University of Science and Technology(Nature Science),2002,26(5):457-460. |
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| Authors: | XuZhihong |
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| Abstract: | In finite elastic deformation,the direction and the density of the boundary force can greatly change with the deformation of the elastic body.As for finite elastic deformaion body,the influence of deformation on the boundary force should be considered in the nonlinear finite element analysis.The analytical expression of incremental force acting on the boundary of the half space under finite deformation is obtained and two kinds of boundary forces are disussed in detail. |
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| Keywords: | finite deformation boundary condition finite element |
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