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材料工程  2013 

应用数字图像相关方法测试航空复合材料的弹性常数

DOI: 10.3969/j.issn.1001-4381.2013.10.014, PP. 80-85

Keywords: 数字图像相关,航空复合材料,弹性常数,应变测试精度

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Abstract:

通过数字图像相关方法对三种航空复合材料的弹性常数进行了测试。通过对DICM理论分析,依据ASTM标准提出合理的测试方案使得DICM的应变测试精度达到25με,满足航空复合材料测试要求。同时应用DICM和电测法对比测试了三种不同航空复合材料的弹性常数,实验结果表明这两种方法得到的实验结果相对误差较小,应力-应变曲线基本重合,DICM能够很好地反映航空复合材料的应变响应和精确测试其弹性常数。

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