삼차원 다절점 유한요소의 개발과 멀티스케일 문제의 적용Development of three dimensional variable-node elements and their applications to multiscale problems

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In this paper, three dimensional linear conforming variable-finite elements are presented with the aid of a smoothed integration (a class of stabilized conforming nodal integration), for mnltiscale mechanics problems. These elements meet the desirable properties of an interpolation such as the Kronecker delta condition, the partition of unity condition and the positiveness of interpolation function. The necessary condition of linear exactness is fully relaxed by employing the smoothed integration, which renders us to meet the linear exactness in a straightforward manner. This novel element description extend the category of the conventional finite elements space to ration type function space and give the flexibility on the number of nodes of element which are fixed in the conventional finite elements. Several examples are provided to show the convergence and the accuracy of the proposed elements, and to demonstrate their potential with emphasis on the multiscale mechanics problems such as global/local analysis, nonmatching contact problems, and modeling of composite material with defects.
Publisher
한국전산구조공학회
Issue Date
2008-04-18
Language
KOR
Citation

한국전산구조공학회 2008년도 정기학술대회, pp.172 - 176

URI
http://hdl.handle.net/10203/163348
Appears in Collection
ME-Conference Papers(학술회의논문)
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