A computational lifetime prediction of a thermal shock experiment. Part II: discussion on difference fatigue criteria

Sébastien Amiable (1) , Sébastien Chapuliot (2) , Andreï Constantinescu (1) , Antoine Fissolo (2)

1 LMS - Laboratoire de mécanique des solides
2 DM2S - Département de Modélisation des Systèmes et Structures

The SPLASH experiment has been designed in 1985 by the CEA to simulate thermal fatigue due to cooling shocks on steel specimens and is similar to the device reported by Marsh in Ref. [1]. The purpose of this paper is to discuss the application of different fatigue criteria in this case. The fatigue criteria: dissipated energy, Manson Coffin, Park and Nelson, dissipated energy with a pressure term, are determined for the experiment using results from FEM computations presented in the first part of the paper (Part I) and compared with results from uniaxial and multiaxial experiments from literature. The work emphasizes the evolution of the triaxiality ratio during the loading cycle.

Mots clés: finite element; low‐cycle fatigue; plasticity; thermal fatigue; thermal shock; low-cycle fatigue; 304L stainless steel

Domaines: Mécanique [physics.med-ph]

Sébastien Amiable, Sébastien Chapuliot, Andreï Constantinescu, Antoine Fissolo. A computational lifetime prediction of a thermal shock experiment. Part II: discussion on difference fatigue criteria. Fatigue and Fracture of Engineering Materials and Structures, 2006, 29, pp.219-228. ⟨10.1111/j.1460-2695.2006.0983.x⟩. ⟨hal-00111461⟩