국소 분할된 패치를 갖는 비매개변수 금형묘사법을 이용한 3차원 박판성형공정 시뮬레이션Finite Element Simulation of Sheet Metal Forming by Using Non-parametric Tool Description with Locally Redefined Patches

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An improved nonparametric tool description based on successive refined nonparametric patches is proposed and the related criterion for refinement is also discussed. In the proposed scheme any required order of tool surface conformity can be achieved by employing successive refinements according to the suggested criterion. By using the suggested adaptive tool refinement technique based on the nonparametric patch tool description the locally refined nonparametric tool surface with economic memory size and sufficient accuracy as well as with favorable characteristics for contact treatment can be obtained directly from the parametric patch related with commercial CAD system. Computation is carried out for a chosen complex sheet forming example of an actual autobody panel in order to verify the validity and the efficiency of the developed tool surface description.
Publisher
한국소성가공학회
Issue Date
1996-03
Language
Korean
Citation

소성가공, v.5, no.1, pp.47 - 54

ISSN
1225-696X
URI
http://hdl.handle.net/10203/76358
Appears in Collection
ME-Journal Papers(저널논문)
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