Presentation + Paper
1 August 2021 Selection of temperature-induced fringe displacements to evaluate stress field with the thermal transient stepping photoelasticity method
Author Affiliations +
Abstract
To simplify the implementation of photoelasticity studies, the recently introduced Thermal Transient Stepping (TTS) method produces a stress field, from images with fringe displacements induced by temperature. These images are acquired without using mechanically-induced load variations, nor rotating optical devices. However, TTS produces stress fields with unwrapping errors, due to the lack of a strategy to select adequately the fringe displacements. We addressed this limitation by evaluating different thermal stimulations, and their effects in the performance of TTS. This allows us to achieve stress fields with higher fringe orders.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hermes Fandiño Toro, Juan Briñez de León, and Alejandro Restrepo-Martínez "Selection of temperature-induced fringe displacements to evaluate stress field with the thermal transient stepping photoelasticity method", Proc. SPIE 11841, Optics and Photonics for Information Processing XV, 1184102 (1 August 2021); https://doi.org/10.1117/12.2594374
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KEYWORDS
Photoelasticity

Fringe analysis

Thermography

Cameras

Visualization

Visible radiation

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