Approche multi-échelle en fatigue polycyclique anisotherme
2000
An extension of the macro-meso approach developed by Dang Van in isothermal high-cycle fatigue is established in the case of structures subjected to anisothermal cyclic loadings. The fatigue limits of such structures are assumed to be temperature-dependent. This proposal is based upon the assumption of elastic shakedown at macroscopic and mesoscopic scales. The use of a local shakedown condition established for structures with temperature-dependent yield limits leads to a thermomechanical formulation of the high-cycle fatigue criteria.
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