Stereo-DIC Uncertainty Quantification based on Simulated Images

被引：40
作者：
Balcaen, R. [1 ]
Reu, P. L. [2 ]
Lava, P. [3 ]
Debruyne, D. [1 ]
机构：
[1] Katholieke Univ Leuven, Dept Mat Technol, Campus Ghent,Gebroeders Desmetstr 1, B-9000 Ghent, Belgium
[2] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA
[3] MatchID, Wijmenstr 21T, B-9000 Ghent, Belgium
来源：
EXPERIMENTAL MECHANICS | 2017年 / 57卷 / 06期
关键词：
Digital image correlation; Uncertainty quantification; Error assessment; Optical techniques; ERROR ASSESSMENT; STRAIN;
D O I：
10.1007/s11340-017-0288-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stereo digital image correlation (stereo-DIC) is in wide-spread use for full-field shape, motion and deformation-measurements. However there are very few papers investigating the influence of the setup on the measurement uncertainty. This is mainly due to the highly non-linear measurement chain involving both optical and numerical aspects, making it difficult to investigate how error sources are propagated through the stereo-DIC chain. Indeed, it is impossible to separate all the error sources that are present during a physical measurement. This paper tries to investigate a selection of error sources that are present during experiments. This is based on a simulator introduced in a previous article (Balcaen et al., Exp Mech, 1-16 2017) and briefly reviewed here. Based on these simulations we suggest some "best-practices" guidelines of optimal stereo-DIC setups.
引用
收藏
页码：939 / 951
页数：13
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