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分别以静载作用下纤维层合板(FRP)和层压金属复合材料(FML)的强度为目标,对层合板中纤维层的铺层角度进行了优化设计,依据得到的优化结果对两种层合板在不同载荷下的强度性能进行了比较。采用有限元对层合板进行结构分析,结合Tsai-Wu准则和VonMises准则得到层合板的强度失效因子,然后将粒子群优化算法和有限元结合起来实现优化过程。优化结果表明,FML由于Al层的加入使其横方向承载能力加强,相比FRP,FML具备更好的抵抗面内双向拉伸载荷的能力;在受面外集中载荷作用时,FML在4种不同边界条件下的强度性能都优于FRP,并且FML的强度性能更为稳定。
In order to optimize the strength of fiber laminates (FRP) and laminated metal composites (FML) under static loading, the optimal lay-up of the fiber layers in the laminates was optimized. Based on the optimized results, The strength performance of plywood under different loads were compared. The finite element method is used to analyze the structure of the laminate, and the strength failure factor of the laminate is obtained by combining the Tsai-Wu criterion with the Von Mises criterion. Then the particle swarm optimization algorithm is combined with the finite element method to realize the optimization process. The results of optimization show that FML possesses better ability of bearing lateral biaxial tensile loading than FRP due to the addition of Al layer, The strength performance under different boundary conditions is better than that of FRP, and the strength performance of FML is more stable.