复合材料冲击损伤及冲击后压缩强度的等效实验方法

An Effective Test Method for Characterization of Impact Damage and Gaining the Compression Properties after Impact of Composite Laminates

简要论述了复合材料低速冲击及冲击后压缩的研究情况 ,比较了几种不同的冲击后的压缩实验方法 ,选取一种小尺寸试件方法 ,对复合材料低速冲击后的压缩行为进行研究 ,并将结果与有关文献进行了比较 ,实验结果与文献结果具有一致的变化规律 .研究结果显示 ,对于材料研究 ,该方法可以用来表征复合材料冲击后的压缩特性 .使用该方法可以大大节省实验费用及周期 .

A test method with much smaller specimens was employed to study the compressive behavior of composite laminates after low velocity impact. T300/modified-epoxy was selected for this purpose. The experimental results were in good agreement with that presented in references. This method is suitable for use in characterization of post-impact residual compressive strength of composite materials. The cost and time period of testing could be greatly reduced by using this method.