先进复合材料格栅结构力学性能仿真分析

Simulation Analysis for Mechanical Performance of Advanced Composite Grid Structures

以玻璃纤维增强聚丙烯基复合材料格栅结构为研究对象,针对格栅结构参数与格栅结构强度的关系,使用有限元分析软件Ansys对格栅角度和格栅厚度两个重要的结构参数进行仿真模拟。以等效应力和应力体积比大小为依据,考虑构件实际受力情况,作力学模型简化,通过仿真分析得出格栅角度与格栅厚度的理论优化值为42°和1.5mm,实现对热塑性复合材料格栅结构的最优化设计。

Glass fiber reinforced polypropylene-based composite grid structure was selected for the study.For the relationship between grid structure parameters and mechanical property,finite element analysis Ansys software was used to analyze the effect of grid angle and grid width on the grid structure strength.According to the value of equivalent stress and ratio between stress and volume,mechanical model was simplified with considering the realities.The optimum value of grid angle and grid width was 42° and 1.5 mm by simulation analysis.This study achieved the optimal design of thermoplastic composite grid structure.