A dynamic characterization of thermal stimulation for residual stresses using digital photoelasticity

Jhonatan Rendón Arango; Hermes Fandiño Toro; Juan Briñez de León; Alejandro Restrepo Martínez

doi:10.1117/12.2594518

1 August 2021 A dynamic characterization of thermal stimulation for residual stresses using digital photoelasticity

Jhonatan Rendón Arango, Hermes Fandiño Toro, Juan Briñez de León, Alejandro Restrepo Martínez

Proceedings Volume 11841, Optics and Photonics for Information Processing XV; 1184105 (2021) https://doi.org/10.1117/12.2594518
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Evaluation of residual and thermal stresses using temporal analysis of color in photoelasticity images was applied to three discs with residual stresses in different zones. The stress field generated by a compressive load is deformed under residual stress presence. 3D color trajectories for interest pixels show behavior differences between locations with and without residual stress. Finally, k-means analysis for three experiments shows the presence of residual stresses and relates their temporal behavior with a high stress level zone.

Conference Presentation

Citation Download Citation

Jhonatan Rendón Arango, Hermes Fandiño Toro, Juan Briñez de León, and Alejandro Restrepo Martínez "A dynamic characterization of thermal stimulation for residual stresses using digital photoelasticity", Proc. SPIE 11841, Optics and Photonics for Information Processing XV, 1184105 (1 August 2021); https://doi.org/10.1117/12.2594518

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