Experimental Research on Measuring Two-Dimensional Stress Field Using Digital Holographic Photo-Elastic Method

Bo Gong; Wei Xu; Chao Wang; Xiao Fan Qian; Ya Ping Zhang; Li Ming Zhang; Dan Tong Ouyang

doi:10.4028/www.scientific.net/AMR.586.337

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Experimental Research on Measuring Two-Dimensional Stress Field Using Digital Holographic Photo-Elastic Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 586Experimental Research on Measuring Two-Dimensional...

Experimental Research on Measuring Two-Dimensional Stress Field Using Digital Holographic Photo-Elastic Method

Abstract:

According to the holographic optical theory, based on the method of rotating reference light polarization plane, through the simultaneous solution of light intensity equations transformed by the hologram, the digital holographic nondestructive testing of two-dimensional stress field is introduced. This technology does not require additional experimental means and numerical method for separate fringes, determining fringe order and solving stress. It is a convenient, accurate and non-destructive measurement of two-dimensional stress field. The paper first introduces the basic theory of digital holographic photo-elastic method, and then verifies it by experiments and simulation. Light intensity images are obtained through the comparative experiments and theoretical solutions. The results prove the strong feasibility of the method in experiments, and lay the foundation for further experimental study.

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Periodical:

Advanced Materials Research (Volume 586)

Pages:

337-341

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.586.337

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Online since:

November 2012

Authors:

Bo Gong, Wei Xu, Chao Wang, Xiao Fan Qian, Ya Ping Zhang, Li Ming Zhang, Dan Tong Ouyang

Keywords:

Digital Holography, Photo-Elastic Method, Reference Light, Two-Dimensional Stress Field

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