Damage Monitoring and Analysis of Fiber-Metal Laminates with an Open Hole Using Digital Image Correlation
Damage Monitoring and Analysis of Fiber-Metal Laminates with an Open Hole Using Digital Image Correlation
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DOI：
10.4028/www.scientific.net/amm.868.323
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发表时间：
2017-07
期刊：
影响因子：
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通讯作者：
Anshi Tong;Lizhu Xie;X. Bai;Ming Li;Weiying Meng
中科院分区：
文献类型：
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作者：
Anshi Tong;Lizhu Xie;X. Bai;Ming Li;Weiying Meng
有缺口的纤维金属层压板很容易受到损坏。目前，损伤检测主要依靠目视检查和C扫描。但这两种方法均受限于检测人员的技术水平，容易造成漏检甚至误检。本文致力于探索 DIC 监测技术，以评估单轴拉伸载荷下缺口（开孔）样本中发生的损伤过程。采用二维 (2D) 数字图像相关 (DIC) 技术获得 GLARE3-3/2 和 GLARE6-3/2 带有开圆孔的层压板在拉伸载荷下的全场表面应变测量。对有缺口的纤维金属层压板的失效模式、损伤起始和进展进行了表征和讨论。
Notched fiber-mental laminates are susceptible to damage. Nowadays, damage detection mainly depends on visual inspection and C scan. But the two methods are limited to the technical skill of the inspectors, causing missed detection or even fault detection. This paper devotes to exploring the DIC monitoring technique to assess of the damage process taking place in notched (open hole) specimens under uniaxial tensile loading. Two-dimensional (2D) Digital Image Correlation (DIC) techniques are employed to obtain full-field surface strain measurements of GLARE3-3/2 and GLARE6-3/2 laminate with an open circular hole under tensile loading. Failure modes,damage initiation and progression of notched fiber-metal laminates are characterized and discussed.