关键词: 复合材料, 鸟撞, SPH, 渐进损伤, 仿真分析

Abstract: In this paper, high-velocity impacts for application to the bird-strike problem of composite laminates were studied. The progressive damage model is used to simulate composite laminates, in order to study the deformation and damage of composite laminates subjected to the bird strike. The process of composite laminates by bird impact is simulated through the smoothed particle hydrodynamics method (SPH) coupled explicit finite element method. This paper analyses the damage of bird when it hits the composite laminates. The progressive damage characteristics of a unidirectional composite laminates, and the damage of fiber and matrix of every layer in the composite laminates. The influence of absorbing energy of laminates is studied at the direction of different incident angle of bird. The analysis results show that the laminates layers' orientations should have corresponding change in order to improve the energy absorption of composite laminates.

Key words: composite material, bird impact, SPH, progressive damage , simulation