Dissipation measurements in steel sheets under cyclic loading by use of infrared microthermography

Abstract : Heterogeneous dissipation in steel sheets due to cyclic loading is difficult to measure, especially in the transverse direction because of the high conductivity and low thickness of the sheets. The goal of this article is thus to develop an experimental protocol allowing for the dissipation field determination from infra-red thermography. The protocol is based on a specific differential measurement and an asynchronous acquisition. It reduces measurement artefacts due to coating, rigid body motion, convection, and optical deleterious effects. It is eventually applied to different specimens.
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Submitted on : Tuesday, January 27, 2009 - 4:25:26 PM
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Martin Poncelet, Cédric Doudard, Sylvain Calloch, François Hild, Bastien Weber. Dissipation measurements in steel sheets under cyclic loading by use of infrared microthermography. Strain, Wiley-Blackwell, 2010, 46, pp.101-116. ⟨10.1111/j.1475-1305.2009.00622.x⟩. ⟨hal-00356522⟩

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