Fatigue strength modelling of high-performing welded joints

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • University of British Columbia

Kuvaus

This paper investigates the fatigue strength modelling of high-performing welded steel joints. The work considers the strain-based, notch stress, averaged strain energy density approaches, and linear elastic fracture mechanics. A comparison of the methods with experimental data shows that the predictions vary significantly for different modelling assumptions. Only the microstructure-sensitive strain-based approach can predict the fatigue life of various weld geometries and plate thicknesses. The explicit modelling of the localised plasticity using the microstructure-dependent representative volume element is required for accurate prediction of the short crack initiation and growth periods, which dominate the fatigue life modelling of high-performing welds.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli105555
JulkaisuINTERNATIONAL JOURNAL OF FATIGUE
Vuosikerta135
TilaJulkaistu - kesäkuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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