When pulled uniaxially to failure, metallic specimens undergo two periods of reversible elastic stress. The first occurs during the initial elastic portion of the stress-strain curve prior to the on-set of plastic deformation. The second occurs at the moment of fracture, as the strain applied to the specimen is rapidly and elastically released. Assuming near isentropic conditions, the effect is thermos-elastic cooling or heating depending on the sign of the stress. To identify and document this effect, tensile strength tests were performed and imaged by a highly sensitive Telops broadband infrared camera. Join us for a first look at these newly acquired measurements collected in collaboration with the University of Rochester’s Materials Science Program and Mechanical Engineering Department.
Join Joseph Carrock, Field Applications Engineer at Telops, for this next webinar.
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