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SHEAROGRAPHY: A Full-Field Measurement Technique and Application in Non-Destructive Testing
Technical Paper
2005-01-0485
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper reviews shearography and its applications in nondestructive testing. Shearography is a laser-based technique for full-field and non-contacting measurement of surface deformation (displacement or strains). The technique can be used for strain measurement, design verification and optimization, material characterization, residual stress evaluation, leak detection, vibration studies and 3-D shape measurement. Despite being a relative young technique, it has already received considerable industrial acceptance for nondestructive testing. One major difference of shearography from other non-destructive testing techniques is the mechanics of revealing flaws. Shearography reveals defects in an object by identifying defect-induced deformation anomalies which are more relevant to structural weakness.
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Citation
Hung, M., "SHEAROGRAPHY: A Full-Field Measurement Technique and Application in Non-Destructive Testing," SAE Technical Paper 2005-01-0485, 2005, https://doi.org/10.4271/2005-01-0485.Also In
References
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- Hung, Y.Y. Hovanesian J.D. “Fast Detection of Residual Stresses in an Industrial Environment by Thermoplastic-based Shearography” Proceedings of the 1990 SEM Spring Conference on Experimental Mechanics 769 775 Albuquerque, New Mexico June 4-6 1990
- Hung, Y.Y. “Digital Shearography and applications” Trends in Optical Non-destructive Testing and Inspection 287 308 Elsevier 2000 Rastogi Pramond K. Inaudi Daniele
- Hung, Y.Y. Shang, H.M. “A unified approach for holography and shearography in surface deformation measurement and nondestructive testing” Optical Engineering 1197 1207 42 5 May 2003