The present paper summarises an attempt of using the Modified Wöhler Curve Method (MWCM) in conjunction with the reference radius concept (rref=1 mm) to estimate lifetime of welded joints subjected to multiaxial fatigue loading. The accuracy and reliability of the devised fatigue design methodology was checked through several data sets taken from the literature and generated by testing, under in-phase and out-of-phase biaxial loading, steel and aluminium welded samples. The results of such a systematic validation exercise seem to support the idea that the multiaxial fatigue life estimation technique summarised in the present paper can be considered as an interesting alternative method suitable for performing the fatigue assessment of those welded structures whose critical sites are damaged by in-service multiaxial fatigue loading.
On the use of the Modified Wöhler Curve Method applied in terms of the Reference Radius Concept to perform the multiaxial fatigue assessment of welded joints
SUSMEL, Luca;TOVO, Roberto
2010
Abstract
The present paper summarises an attempt of using the Modified Wöhler Curve Method (MWCM) in conjunction with the reference radius concept (rref=1 mm) to estimate lifetime of welded joints subjected to multiaxial fatigue loading. The accuracy and reliability of the devised fatigue design methodology was checked through several data sets taken from the literature and generated by testing, under in-phase and out-of-phase biaxial loading, steel and aluminium welded samples. The results of such a systematic validation exercise seem to support the idea that the multiaxial fatigue life estimation technique summarised in the present paper can be considered as an interesting alternative method suitable for performing the fatigue assessment of those welded structures whose critical sites are damaged by in-service multiaxial fatigue loading.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
