BOUBAKER, H.B.; MAREAU, C.; AYED, Y.; GERMAIN, G.; GUÉRIN, Fabrice

doi:10.1016/j.procir.2019.04.336

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http://creativecommons.org/licenses/by-nc-nd/

BOUBAKER, H.B.
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

MAREAU, C.
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

AYED, Y.
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

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Communication dans un congrès avec actes

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17th CIRP Conference on Modelling of Machining Operations, 2019-06-13, Sheffield. 2019, vol. 82, p. 20-25

Elsevier BV

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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.< Leer menos

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Numerical simulation

Crystal plasticity model

Hyperelastic formulation

Adiabatic shear bands

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

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