Multi-objective optimal design of carbon and glass reinforced hybrid composites based on design rules

An optimisation study on the carbon and glass fibre reinforced hybrid composites in three-point bending is presented in this paper. For both unidirectional and multi-directional hybrid composites, the flexural properties were obtained by Finite Element Analysis (FEA)-based simulation. Several design rules were derived, and optimisation was done by applying these rules, with minimising the cost and weight being the objectives and the flexural strength being the constraint. The results from the design rule-based optimisation were compared with those from the non-dominated sorting GA-II (NSGA-II).