Ultra low-cycle fatigue behaviour of a structural steel

Ultra low-cycle fatigue behaviour of a structural steel

•Monotonic, LCF and ULCF behaviour of the S185 steel was investigated.•DIC and features tracking techniques used to allow models calibration.•Coffin–Manson relation produced inconsistency predictions in the ULCF regime.•A new damage function was proposed for the Kanvinde–Deierlein ULCF approach.•Xue...

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Veröffentlicht in:Engineering structures 2014-02, Vol.60, p.214-222
Hauptverfasser: Pereira, J.C.R., de Jesus, A.M.P., Xavier, J., Fernandes, A.A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Building structure
Buildings. Public works
Construction (buildings and works)
Damage
Exact sciences and technology
Experimental techniques
Fatigue failure
Finite element modelling
Low cycle fatigue
Manufacturing engineering
Mathematical models
Metal structure
Seismic phenomena
Stresses. Safety
Structural analysis. Stresses
Structural steel
Structural steels
Tensile tests
Ultra low-cycle fatigue
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Beschreibung
Zusammenfassung:•Monotonic, LCF and ULCF behaviour of the S185 steel was investigated.•DIC and features tracking techniques used to allow models calibration.•Coffin–Manson relation produced inconsistency predictions in the ULCF regime.•A new damage function was proposed for the Kanvinde–Deierlein ULCF approach.•Xue approach for ULCF was extended to multiaxial conditions. Steel structures subjected to extreme loading conditions (e.g. earthquakes, support settlements, industrial plant shutdown) undergo large deformations leading to fracture, either due to monotonic loading or ultra-low-cycle fatigue (ULCF) (Nf
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2013.12.039