Reliability Based Optimal Structural and Mechanical Designby Seung J. Lee, AeroStructures Inc, United States,
Paul H. Wirsching, AeroStructures Inc, United States,
Abstract: A reliability based optimal design strategy has been developed. Nonlinear limit state functions and nonnormal random variables can be accommodated. For structural systems analysis, a failure mode approach is taken in which each mode of failure is defined by a performance function. First order and advanced (Wu/FPI) reliability methods are employed to compute point probabilities of failure. The generalized reduced gradient (GRG) method, generally considered to be one of the best available optimization programs, is employed as the 'nerve center' of the system. The computer code which automates the algorithm is called RELOPT.
Subject Headings: Failure analysis | Failure modes | Structural failures | Structural reliability | Structural analysis | Structural systems | System analysis
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