Abstract
This paper proposes a procedure for the optimum design of composite laminates with initial imperfection under probabilistic considerations. The initial imperfection, strength parameters and ply-level thickness are considered as random variables. Ply-level failure probability is evaluated by the first order reliability method and system reliability is computed based on the first-ply failure criterion. The optimum design is formulated to consider the laminate thickness as the objective function and reliability requirement as the constraint. A numerical example is presented to demonstrate the methodology proposed.
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Foundation item: Supported by Hubei Key Laboratory of Roadway Bridge and Structure Engineering (2005)
Biography: WANG Xiangyang(1970–), male, Associate professor, Post Doctor, research direction: civil engineering and mechanics
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Wang, X. Probabilistic optimum design of symmetric laminates under first-ply failure. Wuhan Univ. J. of Nat. Sci. 12, 303–306 (2007). https://doi.org/10.1007/s11859-006-0005-5
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DOI: https://doi.org/10.1007/s11859-006-0005-5