Verification of an optical metrology system (ARAMIS) by comparing experimental data with FE calculations and continuum approaches
Verification of an optical metrology system (ARAMIS) by comparing experimental data with FE calculations and continuum approaches
复制标题
通过将实验数据与有限元计算和连续方法进行比较来验证光学计量系统 (ARAMIS)
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
S. Reese
中科院分区：
文献类型：
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作者：
B. Stier;S. Reese
光学三维现场测量系统，基于DIC（数字图像相关）提供运动学量。他们是适当的设备，帮助了解材料的行为，特别是在高应变。这些系统的一个问题是缺少关于位于试样观察表面后面的材料点的信息，这是分配完整变形梯度所需要的。对于计量系统给出的原始点坐标数据，不同的处理方法会导致不同的运动学结果。为了确保系统确定的类应变结果的正确性，将它们与解析和有限元计算进行比较。（©2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim）
Optical 3D field measuring systems, based on DIC (Digital Image Correlation) deliver kinematic quantities. They are appropriate devices helping to understand the material behavior especially at high strains. One problem of these systems is the missing information about material points located behind the observed surface of the specimen, which is needed to assign the full deformation gradient. Different ways of dealing with raw point coordinate data that is confidently given by the metrology system lead to different kinematic results. To ensure the correctness of strain‐like results determined by the system, they are compared to analytical and finite element calculations. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)