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Separation of variables solutions of stability problems of orthotropic rectangular thin plates
Wang Xingming, Liu Bo, Xing Yufeng*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The stability problems of orthotropic rectangular thin plates were solved by using separation of variables, and the analytic solutions were obtained for three boundary conditions, which are the same with the results in literature. The present solution method is much simpler than traditional semi-inverse method.The effects of the force boundary conditions on the implementation of separation of variables were also investigated. The basic method without causing Poisson-s effect and rigid displacement has also been presented. The laminated plate was reckoned to be the orthotropic rectangular thin plate whose buckling problems were solved with present method for the plate subjected to in-plane unidirectional distributed compressive force, the results agree well with those of finite element method, which validate the correctness and practicability of present method.
Keywords�� orthotropic   thin plates   buckling   critical load   separation of variables     
Received 2009-06-05;
About author: ������(1975-),��,����������,��ʿ��,w7526@126.com.
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������, ����, ������.�����������Ծ��α����ȶ������ֱ�ӽⷨ[J]  �������պ����ѧѧ��, 2010,V36(8): 949-952
Wang Xingming, Liu Bo, Xing Yufeng.Separation of variables solutions of stability problems of orthotropic rectangular thin plates[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(8): 949-952
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