A flexible modelling framework leading to a probabilistic multiaxial Kitagawa-Takahashi diagram: Applied to cast Al-Si alloys
1 LAMPA, Arts et métiers ParisTech, 49000 Angers, France
2 PSA Peugeot Citröen, 92256 La Garenne-Colombes, France
3 I2M, Arts et métiers ParisTech, 33405 Talence Cedex, France
a Corresponding author: email@example.com
The aim of this work is to propose simple analytical tools to predict the fatigue strength of cast aluminium components as a function of the casting process and post-cast treatment. The proposed methodology is based on the Murakami approach to predict the maximum defect size and a flexible modelling framework which leads to the construction of a probabilistic, multiaxial Kitagawa-Takahashi diagram. This framework is capable of modelling two independent co-existing fatigue damage mechanisms. This methodology will be applied to fatigue data taken from the literature as well as tests conducted on AlSi7 cast specimens manufactured via three different processes.
© Owned by the authors, published by EDP Sciences, 2014
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