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Proceedings Paper

High-speed and high-definition infrared imaging for material characterization in experimental mechanics
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Paper Abstract

Heat transfers are involved in many phenomena such as friction, tensile stress, shear stress and material rupture. Among the challenges encountered during the characterization of such thermal patterns is the need for both high spatial and temporal resolution. Infrared imaging provides information about surface temperature that can be attributed to the stress response of the material and breaking of chemical bounds. In order to illustrate this concept, tensile and shear tests were carried out on steel, aluminum and carbon fiber composite materials and monitored using high-speed (Telops FAST-M2K) and high-definition (Telops HD-IR) infrared imaging. Results from split-Hopkinson experiments carried out on a polymer material at high strain-rate are also presented. The results illustrate how high-speed and high-definition infrared imaging in the midwave infrared (MWIR, 3 – 5 μm) spectral range can provide detailed information about the thermal properties of materials undergoing mechanical testing.

Paper Details

Date Published: 5 May 2017
PDF: 10 pages
Proc. SPIE 10214, Thermosense: Thermal Infrared Applications XXXIX, 102140O (5 May 2017); doi: 10.1117/12.2262140
Show Author Affiliations
Marc-André Gagnon, Telops Inc. (Canada)
Frédérick Marcotte, Telops Inc. (Canada)
Philippe Lagueux, Telops Inc. (Canada)
Vincent Farley, Telops Inc. (Canada)
Éric Guyot, Telops Inc. (Canada)
Vince Morton, Telops Inc. (Canada)

Published in SPIE Proceedings Vol. 10214:
Thermosense: Thermal Infrared Applications XXXIX
Paolo Bison; Douglas Burleigh, Editor(s)

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