Digital Image Correlation in Experimental Mechanics for Aerospace Materials and Structures
Digital Image Correlation in Experimental Mechanics for Aerospace Materials and Structures
复制标题
航空航天材料和结构实验力学中的数字图像相关
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
S. Daly
中科院分区：
文献类型：
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作者：
S. Daly
数字图像相关（DIC）是一种用于测量全场表面变形的非接触光学方法。该技术是一种快速、稳健、高度可扩展和精确的方法，用于确定三维物体的表面轮廓和物体表面的位移（拉格朗日应变）。从20世纪80年代早期开始，基于计算机的数字图像相关的能力得到了极大的发展。从那时起，它已被证明是在广泛的长度和时间尺度上对结构和材料进行实验表征的不可或缺的工具。本章讨论了该技术的基本原理及其在航空航天材料和结构的实验表征中的应用。
Digital Image Correlation (DIC) is a non-contact optical method used to measure full-field surface deformations. The technique is a fast, robust, highly scalable and accurate method for determining both the surface profile of a three-dimensional object and the displacements (Lagrangian strains) on the surface of the object. From its inception in the early 1980s, the capabilities of computer-based digital image correlation have grown tremendously. Since that time, it has proven to be an indispensable tool in the experimental characterization of structures and materials over a wide range of length and time scales. This chapter discusses the fundamental principles underlying the technique and its application in the experimental characterization of aerospace materials and structures.
Keywords:
digital image correlation;
DIC;
optical strain;
full-field strain;
deformation measurements;
digital methods;
experimental mechanics