Moire Strain Contours Of Crack-Tip Deformation

B. C. Liu; S. Li; F. P. Chiang

doi:10.1117/12.941709

17 February 1987 Moire Strain Contours Of Crack-Tip Deformation

B. C. Liu, S. Li, F. P. Chiang

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941709
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

In this paper, deformed cross gratings around crack-tip are recorded. The derivative fields of displacements (∂u/∂x, ∂u/∂y, ∂v/∂x, ∂v/∂y, ∂w/∂x ∂w/∂y) are obtained by optical spatial filtering of two shifted deformed gratings. From which, strain contours around crack-tips can be obtained directly.

Citation Download Citation

B. C. Liu, S. Li, and F. P. Chiang "Moire Strain Contours Of Crack-Tip Deformation", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941709

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