한국CDE학회논문집 (Korean Journal of Computational Design and Engineering)

  • 제11권4호
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  • Pages.235-245
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  • 2006
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  • 2508-4003(pISSN)
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  • 2508-402X(eISSN)
한국CDE학회 (Society for Computational Design and Engineering)
권호 표지

임의 형상의 복합재 모델링을 위한 CSG 기반 표현

CSG-based Representation for Free-form Heterogeneous Object Modeling

  • 신기훈 (서울산업대학교 기계공학과) ;
  • 이진구 (서울산업대학교 기계공학과)
  • 발행 : 2006.08.31
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초록

This paper proposes a CSG-based representation scheme for heterogeneous objects including multi-material objects and Functionally Graded Materials (FGMs). In particular, this scheme focuses on the construction of complicated heterogeneous objects guaranteeing desired material continuities at all the interfaces. In order to create various types of heterogeneous primitives, we first describe methods for specifying material composition functions such as geometry-independent, geometry-dependent functions. Constructive Material Composition (CMC) and corresponding heterogeneous Boolean Operators (e.g. material union, difference, intersection. and partition) are then proposed to illustrate how material continuities are dealt with. Finally, we describe the model hierarchy and data structure for computer representation. Even though the proposed scheme alone is sufficient for modeling all sorts of heterogeneous objects, the proposed scheme adopts a hybrid representation between CSG and decomposition. That is because hybrid representation can avoid the unnecessary growth of binary trees.

키워드

참고문헌

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