The infrared thermography has been applied in the past to investigate the high cycle fatigue and to predict the fatigue endurance limit of metals and welded joints. The aim of the present study was to investigate the low cycle fatigue process using an infrared scanner. Experimental tests have been carried out to analyse the low cycle fatigue process of three types of ASTM A 516 gr. 70 steels. The thermal increments during the fatigue life were correlated with the hysteresis loops derived from the traditional procedure. It was demonstrated that an asymptotic temperature increment corresponds to a stable hysteresis loop.

Infrared investigations for the analysis of low cycle fatigue processes in carbon steels

CRUPI, Vincenzo;GUGLIELMINO, Eugenio
2011

Abstract

The infrared thermography has been applied in the past to investigate the high cycle fatigue and to predict the fatigue endurance limit of metals and welded joints. The aim of the present study was to investigate the low cycle fatigue process using an infrared scanner. Experimental tests have been carried out to analyse the low cycle fatigue process of three types of ASTM A 516 gr. 70 steels. The thermal increments during the fatigue life were correlated with the hysteresis loops derived from the traditional procedure. It was demonstrated that an asymptotic temperature increment corresponds to a stable hysteresis loop.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/1907772
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