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Impact of lens distrortions on strain measurements obtained with digital image correlation

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Abstract
The determination of strain fields based on displacements obtained via DIC at the micro-strain level is still a cumbersome task. In particular when high-strain gradients are involved, e.g. in composite materials with multidirectional fibre reinforcement, uncertainties in the experimental setup and errors in the derivation of the displacement fields can substantially hamper the strain identification process. In this contribution, the aim is to investigate the impact of lens distortions on strain measurements. To this purpose, we first perform pure rigid body motion experiments, revealing the importance of precise correction of lens distortions. Next, a uni-axial tensile test on a textile composite with spatially varying high strain gradients is performed, resulting in very accurate determined strains along the fibers of the material

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Chicago
Lava, P, S Coppieters, D Debruyne, Wim Van Paepegem, and Ives De Baere. 2012. “Impact of Lens Distrortions on Strain Measurements Obtained with Digital Image Correlation.” In 7th International Congress & Exposition on Experimental & Applied Mechanics, Proceedings, 1–6.
APA
Lava, P, Coppieters, S., Debruyne, D., Van Paepegem, W., & De Baere, I. (2012). Impact of lens distrortions on strain measurements obtained with digital image correlation. 7th International Congress & Exposition on Experimental & Applied Mechanics, Proceedings (pp. 1–6). Presented at the 7th International Congress & Exposition on Experimental & Applied Mechanics (SEM -2012).
Vancouver
1.
Lava P, Coppieters S, Debruyne D, Van Paepegem W, De Baere I. Impact of lens distrortions on strain measurements obtained with digital image correlation. 7th International Congress & Exposition on Experimental & Applied Mechanics, Proceedings. 2012. p. 1–6.
MLA
Lava, P, S Coppieters, D Debruyne, et al. “Impact of Lens Distrortions on Strain Measurements Obtained with Digital Image Correlation.” 7th International Congress & Exposition on Experimental & Applied Mechanics, Proceedings. 2012. 1–6. Print.
@inproceedings{3134974,
  abstract     = {The determination of strain fields based on displacements obtained via DIC at the micro-strain level is still a cumbersome task. In particular when high-strain gradients are involved, e.g. in composite materials with multidirectional fibre reinforcement, uncertainties in the experimental setup and errors in the derivation of the displacement fields can substantially hamper the strain identification process. In this contribution, the aim is to investigate the impact of lens distortions on strain measurements. To this purpose, we first perform pure rigid body motion experiments, revealing the importance of precise correction of lens distortions. Next, a uni-axial tensile test on a textile composite with spatially varying high strain gradients is performed, resulting in very accurate determined strains along the fibers of the material},
  author       = {Lava, P and Coppieters, S and Debruyne, D and Van Paepegem, Wim and De Baere, Ives},
  booktitle    = {7th International Congress \& Exposition on Experimental \& Applied Mechanics, Proceedings},
  language     = {eng},
  location     = {Costa Mesa, California , USA},
  pages        = {1--6},
  title        = {Impact of lens distrortions on strain measurements obtained with digital image correlation},
  year         = {2012},
}