Reference : A generic anisotropic continuum damage model integration scheme adaptable to both duc...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/165220
A generic anisotropic continuum damage model integration scheme adaptable to both ductile damage and biological damage-like situations
English
Mengoni, Marlène mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique >]
Ponthot, Jean-Philippe mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
2015
International Journal of Plasticity
Pergamon Press - An Imprint of Elsevier Science
66
46-70
Yes (verified by ORBi)
International
0749-6419
Oxford
United Kingdom
[en] continuum damage mechanics ; anisotropy ; numerical algorithm
[en] This paper aims at presenting a general versatile time integration scheme applicable to anisotropic damage coupled to elastoplasticity, considering any damage rate and isotropic hardening formulations. For this purpose a staggered time integration scheme in a finite strain framework is presented, together with an analytical consistent tangent operator. The only restrictive hypothesis is to work with an undamaged isotropic material, assumed here to follow a J2 plasticity model. The only anisotropy considered is thus a damage-induced anisotropy. The possibility to couple any damage rate law with the present algorithm is illustrated with a classical ductile damage model for aluminium, and a biological damage-like application. The later proposes an original bone remodelling law coupled to trabecular bone plasticity for the simulation of orthodontic tooth movements. All the developments have been considered in the framework of the implicit non-linear finite element code Metafor (developed at the LTAS/MN2L,
University of Liège, Belgium - www.metafor.ltas.ulg.ac.be).
http://hdl.handle.net/2268/165220

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