Laser interferometric method for determination of elastoplastic strain field

Shibin Wang; Jingwei Tong; Mario Cottron; Linan Li; Zhiyong Wang

doi:10.1117/12.509768

29 April 2003 Laser interferometric method for determination of elastoplastic strain field

Shibin Wang, Jingwei Tong, Mario Cottron, Linan Li, Zhiyong Wang

Proceedings Volume 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002; (2003) https://doi.org/10.1117/12.509768
Event: Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, 2002, Beijing, China

Abstract

A new full-field optical technique is developed to study surface deformation of solids. This method combines the measurement by grid method and the digital image processing. An optical information processing system and a digital image processing system of computer are used in this method. At the output plane we receive the pattern of grating lines taht can be used for the analysis of deformation of the specimen on which we have produced the phase grating. At last we show the application of this technique in the investigation of elastic-plastic fracture.

Citation Download Citation

Shibin Wang, Jingwei Tong, Mario Cottron, Linan Li, and Zhiyong Wang "Laser interferometric method for determination of elastoplastic strain field", Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); https://doi.org/10.1117/12.509768

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