| 基于Uzawa算法的弹塑性扭转问题的局部微分求积法 |
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| 引用本文： | 丁睿,魏学润. 基于Uzawa算法的弹塑性扭转问题的局部微分求积法[J]. 计算力学学报, 2011, 28(4): 499-503 |
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| 作者姓名： | 丁睿 魏学润 |
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| 作者单位： | 苏州大学数学科学学院,苏州,215006 |
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| 基金项目： | 国家自然科学基金(10201026,10672111)资助项目. |
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| 摘 要： | 研究了由椭圆变分不等式描述的弹塑性扭转问题,构造了基于Uzawa算法的局部微分求积法,给出了数值算例,通过与有限元方法的比较,说明了方法的有效性。
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| 关 键 词： | 弹塑性扭转问题 局部微分求积法 Uzawa方法 变分不等式 |
| 收稿时间： | 2010-01-18 |
| 修稿时间： | 2010-05-29 |
Local differential quadrature method based on the Uzawa algorithm for the elastic-plastic torsion problems |
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| DING Rui and WEI Xue-run. Local differential quadrature method based on the Uzawa algorithm for the elastic-plastic torsion problems[J]. Chinese Journal of Computational Mechanics, 2011, 28(4): 499-503 |
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| Authors: | DING Rui and WEI Xue-run |
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| Affiliation: | School of Mathematical Sciences, Suzhou University, Suzhou 215006,China;School of Mathematical Sciences, Suzhou University, Suzhou 215006,China |
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| Abstract: | The elastic-plastic torsion problems described by an elliptic variational inequality are discussed in this paper. It presents the local differential quadrature method based on the Uzawa algorithm. Finally some numerical experiments are given, comparing with results of FEM, it shows that Uzawa-LDQ method performed better than FEM regarding accuracy, efficiency and computing time. |
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| Keywords: | elastic-plastic torsion problems local differential quadrature method Uzawa method variational inequalities |
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