Stochastic damage computation for fatigue analysis

Weiran Zhang (1) , Amélie Fau (1) , Udo Nackenhorst (1) , Rodrigue Desmorat (2)

1 Leibniz Universität Hannover=Leibniz University Hannover
2 LMT - Laboratoire de mécanique et technologie

Experimental observation of the evolution of a structure under fatigue loading has shown in the literature largely scattered results. To represent these uncertainties, a stochastic damage model based on random process is proposed. The kinetic continuum damage model is compared with some experimental data and other modelling approaches. The original approach is investigated for a two-dimensional structures computed using finite element method. Using this modeling approach, probabilistic fatigue damage information can be provided for any time instant at any point of the structure.

Domaines: Mécanique des solides [physics.class-ph]

Weiran Zhang, Amélie Fau, Udo Nackenhorst, Rodrigue Desmorat. Stochastic damage computation for fatigue analysis. Virtual Design and Validation, Lecture Notes in Applied and Computational Mechanics, 93, pp.329-347, 2020, ⟨10.1007/978-3-030-38156-1_17⟩. ⟨hal-02464075⟩