Implementation of Correction Coefficients Relevant for Photoelastic Coatings into the PhotoStress Software

Peter Frankovský; František Trebuňa; Jan Jadlovsky; Miroslav Pástor; Maria Kenderova

doi:10.4028/www.scientific.net/AMM.486.26

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 486Implementation of Correction Coefficients Relevant...

Implementation of Correction Coefficients Relevant for Photoelastic Coatings into the PhotoStress Software

Abstract:

Optical experimental method PhotoStress is based on the principle of birefringence that occurs on photoelastic coatings on the surface of an object subject to examination. However, photoelastic coating strengthens the examined surface; hence, strains that co-occur in the analysed object exhibit lower values than when no coating is applied. This is the reason for the implementation of relationships for correction coefficients into the PhotoStress software which is now being designed. These coefficients are supposed to eliminate discrepancies in gained values resulting from the impact of stiffness through applied photoelastic coating. Into the PhotoStress software were implemented correction coefficients for plane stress C_PS, one-side coated objects under bending stress C_B, two-sides coated objects under bending stress C_B2, shaft rotation C_t and pressure vessels C_N. The following paper includes explanations of particular types of corrections which were implemented into the PhotoStress software.

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Periodical:

Applied Mechanics and Materials (Volume 486)

Pages:

26-31

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.486.26

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Online since:

December 2013

Authors:

Peter Frankovský*, František Trebuňa, Jan Jadlovsky, Miroslav Pástor, Maria Kenderova

Keywords:

Correction Coefficients, Photoelastic Coating, PhotoStress Software, PhotoStress^® Method

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