A mesh refinement procedure designed for Digital Image Correlation analyses of cracked media is proposed, based on the pixel color for an artificial case, and the crack opening displacement field for two experimental cases. Although evidence that this procedure can improve every case if tiny elements are sought, it is also shown that the size of matrices and consequently, the computational cost can be reduced while maintaining accuracy, especially for low surface crack densities (e.g., single macrocrack).

中文翻译：

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用于处理裂缝的数字图像相关的金字塔自适应网格划分

基于人工案例的像素颜色和两个实验案例的裂缝张开位移场，提出了一种为裂纹介质的数字图像相关分析设计的网格细化程序。尽管有证据表明，如果寻找微小元素，此过程可以改善每种情况，但也表明矩阵的大小以及因此可以降低计算成本，同时保持精度，尤其是对于低表面裂纹密度（例如，单个宏观裂纹）。