27 July 1995 Full-field phase-shifting holographic blind-hole technique for in-plane residual stress detection
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Proceedings Volume 2577, International Conference on Applications of Optical Holography; (1995); doi: 10.1117/12.215319
Event: International Conferences on Optical Fabrication and Testing and Applications of Optical Holography, 1995, Tokyo, Japan
Abstract
The phase-shifting holographic interferometry combined with the blind-hole method for measuring residual stresses was introduced in this paper. The relationship between the out-of- plane displacements and the residual stresses relieved from blind-hole drilling was examined. Combining this relationship and the theory of holographic interferometry, it is found that full- field out-of-plane displacements can be measured by taking one interference fringe pattern even when the illumination and viewing directions are arbitrary. By using this measured displacement field, it is sufficient to determine the residual stresses with three relative out-of- plane displacements measured along the radial directions. Adopting this newly developed technique to measure a known residual stress in an aluminum specimen, good agreement between the experimental data and the known values were found to agree well with respect to eachother.
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Shyh Tsong Lin, Chi-Tang Jeffrey Hsieh, Chih-Kung Lee, "Full-field phase-shifting holographic blind-hole technique for in-plane residual stress detection", Proc. SPIE 2577, International Conference on Applications of Optical Holography, (27 July 1995); doi: 10.1117/12.215319; https://doi.org/10.1117/12.215319
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KEYWORDS
Holography

Phase shifts

Fringe analysis

Holographic interferometry

Experimental mechanics

Phase shifting

Interferometry

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