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Communication Dans Un Congrès Année : 2007

Thermographic analysis of fatigue dissipation properties of steel sheets

Bruno Berthel
Andre Chrysochoos
A. Galtier
  • Fonction : Auteur

Résumé

This paper presents several properties of heat source fields accompanying the high-cycle fatigue of a dual-phase steel grade. Heat sources were derived from thermal data provided by an infrared focal plane array camera. An especially developed image processing estimates separately the thermoelastic coupling source amplitude and the mean dissipation per cycle. Our experiments underline that dissipation sources are heterogeneous and this forms the beginning of the fatigue test. They also point out a linear evolution of the mean dissipation per cycle as a function of the loading frequency for a given stress range and a given loading ratio.
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Dates et versions

hal-00572337 , version 1 (01-03-2011)

Identifiants

  • HAL Id : hal-00572337 , version 1

Citer

Bruno Berthel, Bertrand Wattrisse, Andre Chrysochoos, A. Galtier. Thermographic analysis of fatigue dissipation properties of steel sheets. International Conference on Photomechanics, Jul 2006, Clermont-Ferrand, France. pp.273-279. ⟨hal-00572337⟩
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