Digital Image Correlation
Digital Image Correlation
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DOI：
10.1002/9781118578469.ch6
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
M. Bornert;F. Hild;J. Orteu;S. Roux
中科院分区：
文献类型：
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作者：
M. Bornert;F. Hild;J. Orteu;S. Roux
6.1.背景数字图像相关技术（Digital Image Correlation，DIC）出现于20世纪80年代初，在固体结构力学领域有着重要的影响。目前，该技术仍在不断发展，其挑战是如何从不同加载阶段的图像中测量应力试件和结构表面（或体积）的位移场。该工具的一个具体优点是，它利用了通常通过光学手段获得的数字图像。成像设备不仅在质量和清晰度方面取得了重大进展，而且在（较低）成本方面也取得了重大进展。这些成像装置本质上是非接触式的、非侵入式的、耐受侵蚀性条件（例如，温度、化学环境）、易于使用、高效且便宜，这些特征中的许多特征仅在机械测试的情况下才具有吸引力。
6.1. BackgroundDigital Image Correlation or DIC, which appeared in the early 1980s [LUC 81, BUR 82, SUT 83, SUT 86] has a major impact in the field of the Mechanics of Solids and Structures. Nowadays, it is still undergoing very spectacular developments.The challenge is to measure displacement fields of surfaces (or in volumes) of stressed specimens and structures from images acquired at different stages of loading. A specific advantage of this tool is that it exploits numerical images, which are usually acquired by optical means. Imaging devices have made significant progress not only in terms of quality and definition, but also (lower) cost. These imaging means are inherently contactless, non intrusive, tolerant to aggressive conditions (eg, temperature, chemical environment), easy to use, efficient and cheap, many of these features that can only be appealing in the context of mechanical tests.