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Computational modelling of high-cycle fatigue using a continuum based model

Tutkimustuotos

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoProceedings of the NSCM28
Alaotsikko28th Nordic Seminar on Computational Mechanics, October 22 – 23, 2015, Tallinn, Estonia
Sivut71-74
Sivumäärä4
ISBN (elektroninen)978-9949-430-96-3
TilaJulkaistu - 2015
OKM-julkaisutyyppiB3 Artikkeli konferenssijulkaisussa
TapahtumaNordic Seminar on Computational Mechanics -
Kesto: 1 tammikuuta 2010 → …

Conference

ConferenceNordic Seminar on Computational Mechanics
Ajanjakso1/01/10 → …

Tiivistelmä

In this paper a computational implementation of continuum based transversally isotropic fatigue model is described. The key idea of the continuum based HCF-model is the moving endurance surface where the movement is described by a back stress type tensor, the evolution of which is described by a rate type equation. Furthermore, damage accumulation is also governed with a rate type evolution equation. The model is implemented in the Abaqus FE-program using the user material subroutine. Two strategies to perform a fatigue analysis are compared in a standard cycling loading case. The first analysis reflects the procedure used in a standard fatigue computation. In the second analysis type the effect of evolving damage fields on fatigue life is investigated.

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