An efficient approach for design optimization of structures involving fuzzy variables

We propose a new approach for solving design optimization problems of structures involving fuzzy variables. First, the possibilistic safety model of structures with fuzzy variables is investigated. A possibilistic safety index (PSI) is presented to compare different designs. This paper then presents the PSI-based design optimization (PSIBDO) model for structures with fuzzy variables. The optimization problem is a triple-loop nested problem, and...