Digital Repository, ICF12, Ottawa 2009

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Modelling and numerical simulation of orthogonal metal cutting by chip formation and breaking using Thermo-elasto-visco-plastic constitutive equations fully coupled with ductile damage.
Mazen Issa, Carl Labergère, Kkémais Saanouni, Alain Rassineux

Last modified: 2013-05-03


Metal machining by chip formation is one of the mostly used industrial processes to obtain a
final form of various mechanical components. Its numerical simulation (virtual machining) is
today an increasing task studied by an increasing number of research teams in order to
develop appropriated methodologies able to ‘optimize’ virtually the machining process under
more and more severe conditions (High speed machining). This work proposes a complete
numerical methodology combining ‘advanced’ elastoplastic constitutive equations coupling
thermal effects, large elasto-viscoplasticity with mixed non linear hardening, ductile damage
and contact with friction for 2D machining simulation. Fully coupled (strong coupling)
thermo-elasto-visco-plastic-damage constitutive equations based on the state variables under
large plastic deformation developed for metal forming simulation are presented. The relevant
numerical aspects concerning the local integration scheme as well as the global resolution
strategy and the adaptive remeshing facility are briefly discussed.

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