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Characteristic angle, light intensity and their correlation to wavelength in three dimensional photoelastic media
Author(s) -
Issa S. S.,
Marie I.
Publication year - 1986
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1986.tb00594.x
Subject(s) - wavelength , optics , materials science , intensity (physics) , bending , light intensity , physics , composite material
The interaction of the photoelastic parameters, the normalised light intensity I n the characteristic angle ψ, and their link to the stress state parameters, the ratio of bending and direct stresses P and the angle of divergence θ of the stress components σ M and σ N have been examined by employing different wavelengths. The analysis of the experimental data shows that the correlation diagrams of these parameters demonstrate similar characteristic curves. Measurements also show a preferable range of wavelength within which the wavelength of light source should be selected. So far the results are valid for thin plates, thin shells of rotationally symmetric conditions and similar structures.