Photoelastic model measurement with rotated principal axes by scattered-light photoelasticity |
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Authors: | Toshiki Kihara |
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Institution: | (1) Department of Mechanical Engineering, School of Science and Engineering, Kinki University, Kowakae, 577-8502 Higashi-Osaka, Osaka, Japan |
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Abstract: | The method of measurement of a three-dimensional photoelastic model with rotated principal axes has not yet been fully experimentally
established. It is known that a three-dimensional photoelastic model can be reduced to an optically equivalent model. In this
paper, the optically equivalent model is realized from a stratified model consisting of two layers of the frozen stress model.
The secondary principal stress direction and the relative phase retardation of the frozen disk model in the stratified frozen
stress model are determined for the entire field from Stokes parameters obtained by scattered-light photoelasticity using
unpolarized light. The accuracy of these values is confirmed by a comparison with results only from the frozen stress disk
model. |
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Keywords: | Scattered-light photoelasticity three-dimensional photoelasticity digital photoelasticity rotated principal axes unpolarized light |
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