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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.80 No.1
- 발행연도
- 2021.10
- 수록면
- 103 - 112 (10page)
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초록· 키워드
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This study presents topology optimization of plate structures by employing isogeometrical level set method. For structural analysis of plates, the IsoGeometric Analysis (IGA) approach is applied and Non-Uniform Rational B-Splines (NURBS) basis functions are used for approximation of the design domain geometry as well as the unknown deformation field. In this paper, the level set function is parametrized with Radial Basis Functions (RBFs), which is more efficient than the conventional level set method. This approach along with an approximate re-initialization scheme can maintain a smooth level set function during the optimization process and has less dependency on initial designs because of its ability to nucleate new holes inside the design domain. Due to capability of IGA method in modeling complex design domains while maintaining high accuracy in analysis, combination of IGA with RBFs level set method provides a very useful and effective technique for topology optimization problems. Several numerical examples are prepared to demonstrate the efficiency and accuracy of the method and obtained optimum topologies are compared with the results of other methods in literature.
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참고문헌 (41)
참고문헌 신청
Abdelmoety, A. K. / 2020 / Isogeometric boundary integral formulation for Reissner’s plate problems / Eng. Comput. (Swansea, Wales) 37(1):21~53
Allaire, G. / 2004 / Structural optimization using sensitivity analysis and a level-set method / J. Comput. Phys 194(1):363~393
Beirão Da Veiga, L. / 2015 / A locking-free model for Reissner-Mindlin plates : Analysis and isogeometric implementation via NURBS and triangular NURPS / Math. Model. Meth. Appl. Sci 25(8):1519~1551
Belblidia, F. / 2001 / Topology optimization of plate structures using a single-or three-layered artificial material model / Adv. Eng. Softw 32(2):159~168
Bendsoe, M. P. / 1982 / Some smear-out models for integrally stiffened plates with applications to optimal design / Proc. Int. Symp. on Optimum Structural Design
Allaire, G. / 2004 / Structural optimization using sensitivity analysis and a level-set method / J. Comput. Phys 194(1):363~393
Beirão Da Veiga, L. / 2015 / A locking-free model for Reissner-Mindlin plates : Analysis and isogeometric implementation via NURBS and triangular NURPS / Math. Model. Meth. Appl. Sci 25(8):1519~1551
Belblidia, F. / 2001 / Topology optimization of plate structures using a single-or three-layered artificial material model / Adv. Eng. Softw 32(2):159~168
Bendsoe, M. P. / 1982 / Some smear-out models for integrally stiffened plates with applications to optimal design / Proc. Int. Symp. on Optimum Structural Design
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