Small Oblique Angle Technique for Principal-Strain Separation in Luminescent Photoelastic Coating

Shi Qun Hua; Ying Luo

doi:10.4028/www.scientific.net/AMM.303-306.538

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 303-306Small Oblique Angle Technique for Principal-Strain...

Small Oblique Angle Technique for Principal-Strain Separation in Luminescent Photoelastic Coating

Abstract:

To determine the individual values of the two strain components by separate principal strains, a theoretical model of strain separation by oblique incidence with a new luminescent photoelastic coating configuration is presented. Considering the non-strain related refraction effect included in the total optical response at oblique incidence, the small incidence angle technique for simplifying the post-processing complexity is given. To affirm the validity of this strain separation method based on small oblique angles, the signal-to-noise ratio for providing sufficient signal intensity has been theoretically analyzed.

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Periodical:

Applied Mechanics and Materials (Volumes 303-306)

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538-542

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.303-306.538

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Online since:

February 2013

Authors:

Shi Qun Hua, Ying Luo

Keywords:

Luminescence Coating, Photoelastic Coating, Strain Separation

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