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Numerical simulation of the coupling between thermal dissipation and fish‐eye crack growth in very high cycle fatigue regime
Author(s) -
NGUYEN H.Q.,
GALLIMARD L.,
BATHIAS C.
Publication year - 2013
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12016
Subject(s) - dissipation , materials science , coupling (piping) , finite element method , constitutive equation , structural engineering , field (mathematics) , fatigue testing , fracture mechanics , paris' law , crack closure , mechanics , computer simulation , thermal , engineering , composite material , physics , mathematics , thermodynamics , pure mathematics
In this paper, we study the temperature field associated with the propagation of a fatigue crack in a very high cycle fatigue regime during ultrasonic fatigue testing. We use a Paris–Hertzberg crack growth law to compute the evolution of the crack and a perfectly elastic–plastic constitutive law to compute the plastic dissipation per cycle at the tip of the crack. A thermomechanical finite element model is proposed to estimate the evolution of the temperature field during the crack propagation. Numerical results obtained agree fairly well with experimental results.