A novel 2nd-order shape function based digital image correlation method for large deformation measurements

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• 作者：Ruixiang Bai ; Hao Jiang ; Zhenkun Lei ; ^{leizk@163.com} ; Weikang Li
• 关键词：Digital image correlation ; Inverse compositional matching algorithm ; Invertible second-order shape operator ; Large deformation measurement
• 刊名：Optics and Lasers in Engineering
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：90
• 期：Complete
• 页码：48-58
• 全文大小：1744 K
• 卷排序：90

文摘

A new IC-GN2 algorithm was proposed for nonuniform and large deformation measurements. The new shape operator is invertible and can steadily attain 2nd-order precision. A rubber large deformation experiment was performed to validate the feasibility.