准静态压痕力作用下复合材料层压板损伤分析方法

The analysis method of quasi-static indentation force damage of composite laminate

飞机在服役过程中复合材料结构常常会受到外界作用而产生内部损伤,严重降低结构的承载能力,给飞机安全带来巨大的威胁,因此,复合材料界一直致力于复合材料结构的损伤容限分析方法的研究。目前国内外通常采用准静态压痕与低速落锤冲击试验方法进行复合材料结构损伤引入,本文针对在准静态压痕力作用下复合材料损伤问题,建立了准静态压痕力作用下层压板的损伤分析模型,对复合材料损伤分布形式、损伤扩展等问题进行分析,并通过试验进行了验证,形成了用于准静态压痕力作用下复合材料层压板损伤分析方法。

Aircraft composite structure in the process of service often comes to be used to generate the internal damage,seriously reduces the bearing capacity of structure,brings the huge threat to the safety of the flight,therefore,composite material industry has been committed to composite structure damage tolerance analysis method study.Usually at home and abroad by quasi-static indentation and low speed drop weight impact test method for structural damage is introduced into composite material,based on the quasi-static indentation force under the action of composite material damage problem,quasi-static indentation force is established under the action of damage analysis model of composite material damage analysis form of distribution,and is verified by the experimental,formed for quasi-static indentation force under the action of composite laminate damage analysis method.