| 一种应用于弹塑性结构重分析的快速计算方法 |
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| 引用本文： | 胡东,杨杰. 一种应用于弹塑性结构重分析的快速计算方法[J]. 重庆理工大学学报(自然科学版), 2011, 0(3) |
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| 作者姓名： | 胡东 杨杰 |
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| 作者单位： | 西南交通大学力学与工程学院; |
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| 摘 要： | 为提高弹塑性计算的效率,以弹塑性有限元增量迭代方法为基础,提出了一种新的快速计算方法。该算法用已求解样本的信息来加速求解待求样本,从预测位移、迭代求解2个步骤来实现弹塑性问题的计算。数值计算结果表明,快速算法能大幅提高计算效率,且具有较高的可行性。
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| 关 键 词： | 有限元 弹塑性结构 快速算法 重分析 |
A New Fast Algorithm of Re-analysis Using Elasticity-Plastic Structure |
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| HU Dong,YANG Jie. A New Fast Algorithm of Re-analysis Using Elasticity-Plastic Structure[J]. Journal of Chongqing University of Technology(Natural Science), 2011, 0(3) |
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| Authors: | HU Dong YANG Jie |
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| Affiliation: | HU Dong,YANG Jie(School of Mechanic and Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Based on the elastic-plastic finite element incremental iterative method,a new fast calculation method was proposed in order to improve the efficiency of elastic-plastic FEM.The algorithm,which could speed up solving the problem of the unknown sample with solved samples' information,achieved to solve the elastic-plastic problem by the two-step calculations,i.e.the predicted displacement and iterative solution.The numerical results show that this new fast method can significantly improve the computational ef... |
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| Keywords: | FEM elasticity-plastic structural fast algorithm re-analysis |
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