Imaging Methods for Novel Materials and Challenging Applications, Volume 3 - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics
Imaging Methods for Novel Materials and Challenging Applications, Volume 3 - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics
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新型材料和挑战性应用的成像方法，第 3 卷 - 2012 年实验与应用力学年会论文集
DOI：
10.1007/978-1-4614-4235-6_15
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Crammond G
中科院分区：
文献类型：
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作者：
Crammond G
采用热弹性应力分析（TSA）和数字图像相关（DIC）等新的全场测量技术，对复合材料胶接接头的复杂应力应变分布进行了研究。放大光学器件用于提供具有高测量精度的高分辨率数据。小，但关键的，局部应力和应变集中观察在此放大倍率，这有助于显着的损伤和关节故障的开始。为了比较的目的，对实验应力和应变数据进行处理以给出相同的输出。两种独立的测量技术之间的合理协议是实现。该方法提供了一个准确的实验验证方法的基础，有效的数值模拟方法的发展。
Novel full-field measurement techniques are used to evaluate the complex stress and strain distributions in adhesively bonded composite joints using Thermoelastic stress analysis (TSA) and Digital image correlation (DIC). Magnifying optics are used to provide high resolution data with high measurement precision. Small, but critical, localised stress and strain concentrations are observed at this magnification, which contribute significantly to the initiation of damage and joint failure. The experimental stress and strain data is manipulated to give the same output for the purpose of comparison. A reasonable agreement between the two independent measurement techniques is achieved. The approach provides the basis for an accurate experimental validation methodology for the development of efficient numerical modelling methods.