复合材料圆柱壳体结构缓冲吸能特性的实验分析和数值模拟

本文的研究工作围绕复合材料层合圆柱壳受轴向冲击作用下的动力学问题展开。首先通过准静态压缩实验对标准型和采用花瓣型引发方式的玻璃纤维增强复合材料（GFRP）圆柱壳体的缓冲吸能特性进行了系统的研究对比。之后运用ANSYS，基于失效准则判断的模型对落锤冲击下层合壳体的动力响应过程进行了仿真模拟，发现模拟的数值结果与关键性实验数据能较好地吻合，并且利用此模型预测了花瓣型圆柱壳体的冲击破坏行为。

Test Analysis and Numerical Simulation on The Impact Property of Composite Cylindrical Shells

The major work of this paper is developed on the research of laminated composite shells subjected to axial impact loads. Through the quasi-static compression test, cushion energy absorbing property of the standard and the petal triggered GFRP shells is investigated. Through setting up a material model which implements a failure criteria, ANSYS is applied to simulate the dynamic response process of laminated shells under the drop impact. Satisfactory level of agreement between calculations and test results is obtained regarding the main crushing characteristics. Then the crushing response of petal triggered composite shells is predicted by this finite element model.