环氧树脂基直升机复合材料耐坠性性能试验研究

The Research of Crashworthness Performance for Helicopter Epoxy Composite

本文主要以目前用于国内直升机结构设计的复合材料为对象,针对不同增强材料和基体材料进行复合材料耐坠性性能的研究,了解复合材料的吸能机理与影响因素,对薄壁管形复合材料件进行了树脂基体及增强材料对吸能性能的影响的较为全面和系统的研究,并建立起评价复合材料吸能性能的三个主要指标,即峰值压溃应力、平均压溃应力和比吸能率,对满足先进军用直升机的复合材料结构的耐坠性要求,改进复合材料结构的耐坠性性能,优化耐坠性结构形式提供了参考。

This paper focus on the composite used by domestic helicopter structure.According to the different matrix and fiber,understand the failure behavior of composite by crash testing.Deeply research the composite matrix and fiber character impact on crashworthness performance of composite tube,and establish the three main target value:peak crash stress,average crash stress,SPEA(the Specific Sustained Crushing Stress),finally give the guideline for design and optimize the composite crashworthness structure and improve the composite material energy absorption capability of the advanced military helicopter.