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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.54 No.4
- 발행연도
- 2015.1
- 수록면
- 725 - 740 (16page)
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초록· 키워드
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This study presents critical buckling load optimization of the axially graded layered uniform columns. In the first place, characteristic equations for the critical buckling loads for all boundary conditions are obtained using the transfer matrix method. Then, for each case, square of this equation is taken as a fitness function together with constraints. Due to explicitly unavailable objective function for the critical buckling loads as a function of segment length and volume fraction of the materials, especially for the column structures with higher segment numbers, initially, prescribed value is assumed for it and then the design variables satisfying constraints are searched using Differential Evolution (DE) optimization method coupled with eigen-value routine. For constraint handling, Exterior Penalty Function formulation is adapted to the optimization cycle. Different boundary conditions are considered. The results reveal that maximum increments in the critical buckling loads are attained about 20% for cantilevered and pinned-pinned end conditions and 18% for clamped-clamped case. Finally, the strongest column structure configurations will be determined. The scientific and statistical results confirmed efficiency, reliability and robustness of the Differential Evolution optimization method and it can be used in the similar problems which especially include transcendental functions.
목차
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참고문헌 (25)
참고문헌 신청
Alkan, V. / 2015 / Optimum buckling design of axially layered graded uniform columns / Mater. Test 57(5):494~500
Coello, C.A.C. / 1995 / Optimal design of axially loaded non-prismatic columns via genetic algorithms / Proceedings of the 6th International Conference on Computing in Civil and Building Engineering
Das, S. / 2011 / Differential evolution: a survey of the state-of-the-art / IEEE T Evolut. Comput 15(1):4~31
Ertas, A. H. / 2013 / Optimization of fiber-reinforced laminates for a maximum fatigue life by using the particle swarm optimization. Part II / Mech. Compos. Mater 49(1):107~116
Fu, K.C. / 1992 / Optimization of axially loaded non-prismatic column / Comput. Struct 43(1):159~162
Coello, C.A.C. / 1995 / Optimal design of axially loaded non-prismatic columns via genetic algorithms / Proceedings of the 6th International Conference on Computing in Civil and Building Engineering
Das, S. / 2011 / Differential evolution: a survey of the state-of-the-art / IEEE T Evolut. Comput 15(1):4~31
Ertas, A. H. / 2013 / Optimization of fiber-reinforced laminates for a maximum fatigue life by using the particle swarm optimization. Part II / Mech. Compos. Mater 49(1):107~116
Fu, K.C. / 1992 / Optimization of axially loaded non-prismatic column / Comput. Struct 43(1):159~162
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