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复合材料结构较高速冲击的力学分析

【作者】 李向华

【导师】 邓宗白;

【作者基本信息】 南京航空航天大学 , 工程力学, 2002, 硕士

【摘要】 本文首先介绍了冲击基本理论和大型工程有限元软件—ANSYS的使用方法。 而后通过对复合材料结构层合板遭受冲击载荷作用、球壳与金属板的高速撞击,以及雷达罩鸟撞实验等力学过程进行了初步数值模拟,分析了主要的力学参数量在承受不同冲击变量时的变化,并为部分理论计算找出了相应的实验依据。

【Abstract】 This paper firstly presents the impact basic theories and the applying method for the general engineering FEM software system-ANSYS, then the preliminary numerical simulation has been conducted in the mechanical process of the laminated composite plates subjecting to the impacting loads, the higher-velocity hit between the composite shells and the metal structures, the bird-impact radar cover experiment is also included. Changes of the mechanical values in subjecting to different impact loads are also analyzed. The result of numerical simulation offers a theoretical reference for the experiment of anti-bird radar cover.

  • 【分类号】O383
  • 【被引频次】8
  • 【下载频次】1037
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