| THE DISPLACEMENT FUNCTION OF QUASI-CONFORMING ELEMENT AND ITS NODE ERROR |
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| 作者姓名： | 何东升 唐立民 |
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| 作者单位： | HE Dong_sheng，TANG Li_min (Department of Engineering Mechanics，Dalian University of Technology，Dalian 116023，P R China)(Contributed by TANG Li_min) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＭｏｓｔｏｆｔｈｅｆｉｎｉｔｅｅｌｅｍｅｎｔｓａｒｅｃｏｎｓｔｒｕｃｔｅｄｂｙｕｓｉｎｇｄｉｓｐｌａｃｅｍｅｎｔｆｉｎｉｔｅｅｌｅｍｅｎｔｍｅｔｈｏｄ .Ｂｙｓｕｐｐｏｓｉｎｇｔｈｅｄｉｓｐｌａｃｅｍｅｎｔｆｕｎｃｔｉｏｎｓｉｎｔｈｅｅｌｅｍｅｎｔ,ａｎｄｕｓｉｎｇｔｈｅｐｒｉｎｃｉｐｌｅｏｆｍｉｎｉｍｕｍｐｏｔｅｎｔｉａｌｅｎｅｒｇｙ,ｔｈｅｅｌｅｍｅｎｔｓｔｉｆｆｎｅｓｓｍａｔｒｉｘｃａｎｂｅｆｏｒｍｕｌａｔｅｄ .Ｉｆｔｈｅｄｉｓｐｌａｃｅｍｅｎｔｆｕｎｃｔｉｏｎｉｎｔｈ…
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| 收稿时间： | 2000-12-25 |
The displacement function of quasi-conforming element and its node error |
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| HE Dong-sheng Doctor,Tang Li-min.THE DISPLACEMENT FUNCTION OF QUASI-CONFORMING ELEMENT AND ITS NODE ERROR[J].Applied Mathematics and Mechanics(English Edition),2002,23(2):127-137. |
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| Authors: | HE Dong-sheng Doctor Tang Li-min |
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| Institution: | Department of Engineering Mechanics, Dalian University of Technology, Dalian,116023, P R China |
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| Abstract: | Based on the strain formulation of the quasi_conforming finite element, displacement functions are constructed which have definite physical meaning, and a conclusion can be obtained that the coefficients of the constant and the linear strain are uniquely determined, and the quasi_conforming finite element method is convergent to constant strain. There are different methods for constructing the rigid displacement items, and different methods correspond to different order node errors, and this is different from ordinary displacement method finite element. |
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| Keywords: | quasi_conforming element displacement function error analysis finite element method 9_parameter triangular plate element |
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