Quadrilateral isoparametric finite elements for plane elastic Cosserat bodies* |
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摘 要: |
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关 键 词: | 四边形 等参有限元分析 Cosserat模型 多相矩阵 压力集中 |
收稿时间: | 9 April 2004 |
修稿时间: | 31 March 2005 |
Quadrilateral isoparametric finite elements for plane elastic Cosserat bodies |
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Authors: | Email author" target="_blank">Hongwu?ZhangEmail author Hui?Wang Guozhen?Liu |
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Institution: | (1) State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116024, China;(2) Xinglongtai Oil Extraction Plant, Liaohe Oil Field, Panjin, 124000, China |
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Abstract: | 4-node, 8-node and 8(4)-node quadrilateral plane isoparametric elements are used for the solution of boundary value problems in linear isotropic Cosserat elasticity. The patch test is applied to validate the finite elements. Engineering problems of stress concentration around a circular hole in plane strain condition and mechanical behaviors of heterogeneous materials with rigid inclusions and pores are computed to test the accuracy and capability of these three types of finite elements.The project supported by the National Natural Science Foundation of China (10225212, 50178016, 10421002) and the Program for Changjiang Scholars and Innovative Research Team in University of China The English text was polished by Keren Wang. |
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Keywords: | Cosserat model Isoparametric elements Patch test Heterogeneous materials |
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