References of "Marmi, Abdeljalil"
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See detailMultiaxial fatigue damage modeling of Ti6Al4V alloy
Marmi, Abdeljalil ULg; Habraken, Anne ULg; Duchene, Laurent ULg

in Proceedings of the ICMFF9 Conference (2010)

The aim of this study is to present a new multiaxial fatigue model based on phenomenological approach for the proportional loading. The model estimations are compared to the classical Lemaitre-Chaboche [1 ... [more ▼]

The aim of this study is to present a new multiaxial fatigue model based on phenomenological approach for the proportional loading. The model estimations are compared to the classical Lemaitre-Chaboche [1] fatigue model and experimental results. The comparison is done by simulation of SN curves of notched and un-notched forged TA6V samples. To take into account the effect of stress gradient near notch root, the applied loads such as stress amplitude and Von Mises stress are affected by the triaxialty function introduced by Lemaitre [2]. The models enhanced by triaxialty function give correct results for life estimation of notched samples. [less ▲]

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Peer Reviewed
See detailMultiaxial fatigue damage modelling at Macro scale of Ti6AL4V alloy
Marmi, Abdeljalil ULg; Habraken, Anne ULg; Duchene, Laurent ULg

in International Journal of Fatigue (2009), 31

The Lemaitre and Chaboche fatigue model is investigated in order to predict the fatigue life of tensile samples with and without notches, defining different stress concentration fields. Elastoplastic FE ... [more ▼]

The Lemaitre and Chaboche fatigue model is investigated in order to predict the fatigue life of tensile samples with and without notches, defining different stress concentration fields. Elastoplastic FE simulations based on anisotropic yield locus description were carried out in order to obtain the stress and strain distributions near the notch root. The Lemaitre and Chaboche fatigue model was applied using the point method (local approach) and the gradient method (non-local approach). [less ▲]

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