Mojtaba Eisazadeh - Faculty of Mechanical Engineering, Lahijan branch, Islamic Azad University, Lahijan, Iran
Javad Rezapour - Faculty of Mechanical Engineering, Lahijan branch, Islamic Azad University, Lahijan, Iran

Despite advanced and fast computers which are available in the market, presenting the courses of faster and more accurate solutions of amny engineering problems such as those emerging in the field of aerodynamics is one of the main trouble in this domain yet. However, using meta-heuristic algorithm in some engineering ground works resolved this necessity. The main goal of the present research is the design of an optimized laminated sheet with minimized weight and cost so that it could resist as maximum load as possible before failure. The fitness function is multiobjective that combined with weight, cost and failure load. Therefore, the problem is minimizing the weight and cost with maximizing the failure load concurrently. For the analysis of sheet, we use the classical theory of laminated composite plates. Of course we could also do optimizing via the particle swarm algorithm

Multi-objective,Optimization, Composite, PSO algorithm