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Acta Mechanica Solida Sinica

, Volume 21, Issue 1, pp 19–27 | Cite as

Reliability-based design of composites under the mixed uncertainties and the optimization algorithm

  • Rui Ge
  • Jianqiao Chen
  • Junhong Wei
Article

Abstract

This paper proposed a reliability design model for composite materials under the mixture of random and interval variables. Together with the inverse reliability analysis technique, the sequential single-loop optimization method is applied to the reliability-based design of composites. In the sequential single-loop optimization, the optimization and the reliability analysis are decoupled to improve the computational efficiency. As shown in examples, the minimum weight problems under the constraint of structural reliability are solved for laminated composites. The Particle Swarm Optimization (PSO) algorithm is utilized to search for the optimal solutions. The design results indicate that, under the mixture of random and interval variables, the method that combines the sequential single-loop optimization and the PSO algorithm can deal effectively with the reliability-based design of composites.

Key words

laminated composites inverse reliability analysis reliability-based design sequential single-loop optimization method PSO 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2008

Authors and Affiliations

  1. 1.Department of MechanicsHuazhong University of Science and TechnologyWuhanChina

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