Apports d'approches sans maillage pour la simulation des phénomènes de séparation de la matière. Application aux procédés de mise en forme.

Abstract : In recent years, new methods named Meshfree methods have been developed to surmount limitations of the finite element method. The main characteristic of these methods is to not employ any pre-defined mesh: they use a set of nodes scattered within the problem domain as well as sets of nodes scattered on the boundaries of the domain. A particular attention is paid to the RPIM method, which proposes a nodal interpolation. The followed steps are: a presentation of « Meshfree methods » and their advantages compared to the traditional methods, an introduction to the meshfree RPIM method with a calibration of its associated parameters, and finally, a discussion on results obtained with the RPIM in forming processes exhibiting initiation and propagation of a crack showing the interest of the approach.
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Abderrachid Hamrani. Apports d'approches sans maillage pour la simulation des phénomènes de séparation de la matière. Application aux procédés de mise en forme.. Autre. Ecole nationale supérieure d'arts et métiers - ENSAM, 2016. Français. ⟨NNT : 2016ENAM0036⟩. ⟨tel-01436933⟩

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