Thermographic analysis of fatigue dissipation properties of DP60 steel

B. Berthel (1) , A. Galtier , Bertrand Wattrisse (1) , Andre Chrysochoos (2)

1 LMGC - Laboratoire de Mécanique et Génie Civil
2 ThM2 - ThermoMécanique des Matériaux

This paper presents an infrared image processing developed to analyse the calorimetric manifestation associated with a fatigue test. Heat sources accompanying the fatigue mechanisms were derived from thermal data provided by an IR camera. Our experiments underlined the precocious, heterogeneous development of the dissipation sources due to fatigue. They also pointed out a linear evolution of the dissipation intensity as a function of the loading frequency.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]

B. Berthel, A. Galtier, Bertrand Wattrisse, Andre Chrysochoos. Thermographic analysis of fatigue dissipation properties of DP60 steel. Photomecanics'01, 2006, Clermont-Ferrand, France. ⟨hal-00572478⟩