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总览 评价 徐一峰 ( 上海师范大学数学系,上海 200234; ) 摘要: 本文针对弹塑性扭转问题提出了一个自适应有限元方法。通过研究一个由自适应算法导出的极限问题,证明了离散问题的解随着算法的执行会收敛到变分问题的真解。在证明过程中,给出了一个残差型的
徐一峰
(
上海师范大学数学系,上海 200234; )
摘要:
本文针对弹塑性扭转问题提出了一个自适应有限元方法。通过研究一个由自适应算法导出的极限问题,证明了离散问题的解随着算法的执行会收敛到变分问题的真解。在证明过程中,给出了一个残差型的后验误差估计子。}%综述文章:以背景、研究现状、研究用途的结构书写,篇幅以150~300 字左右为宜,不用第一人称做主语,不与正文语句重复。一般研究性文章:以摘录要点的形式按目的、方法、结果、结论的结构报道出作者的主要研究成果,字数在200~400 字左右为宜,不用第一人称做主语,不与正文语句重复。
关键词:
计算数学;弹塑性扭转问题;椭圆变分不等式;自适应有限元方法;收敛性
XU Yi-Feng
(
Department of Mathematics, Shanghai Normal University, Shanghai 200234; )
Abstract:
In this paper, an adaptive finite element method is proposed for the elasto-plastic torsion problem. With the help of a limiting problem formally resulting from the adaptive algorithm, it is proved that the sequence of discrete solutions converge to the exact solution in the energy norm. In the process, a residual-type error estimator is derived.}%Reviews: please describe the background, status and application of the research with 150-300 words. I and we can not be used as the subject, and the abstract must not the same as the sentences of the main text. General research paper: please extracts the key points of the paper, give the main research achievements with object, methods, results and conclusion with 200-400 words. I and we can not be used as the subject, and the abstract must not the same as the sentences of the main text.
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