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Development of a Hyperelastic Constitutive Model Based on the Crystal Plasticity Theory for the Simulation of Machining Operations

Abstract : In this work, a hyperelastic constitutive model is developed to describe the thermo-mechanical behavior of the Ti17 titanium alloy. The grain shape and the crystallographic orientation are explicitly taken into account. The behavior of both theαandβphases is modelled with a crystal plasticity formulation coupled to a CDM (Continuum Damage Model). The constitutive model is implemented in the ABAQUS/Explicit finite element solver with a user-defined subroutine. The model parameters are identified from experimental tests. According to the cutting simulation results, both strain localization and chip segmentation are strongly impacted by the crystallographic orientation.
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https://hal.univ-angers.fr/hal-02512225
Contributeur : Marie-Françoise Gerard <>
Soumis le : jeudi 19 mars 2020 - 14:42:48
Dernière modification le : lundi 30 mars 2020 - 08:44:31

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H.B. Boubaker, C. Mareau, Y. Ayed, G. Germain, Fabrice Guérin. Development of a Hyperelastic Constitutive Model Based on the Crystal Plasticity Theory for the Simulation of Machining Operations. Procedia CIRP, ELSEVIER, 2019, 82, pp.20-25. ⟨10.1016/j.procir.2019.04.336⟩. ⟨hal-02512225⟩

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