Author
G. Rousselier
Other affiliations: Électricité de France
Bio: G. Rousselier is an academic researcher from Mines ParisTech. The author has contributed to research in topics: Plasticity & Fracture mechanics. The author has an hindex of 18, co-authored 35 publications receiving 2448 citations. Previous affiliations of G. Rousselier include Électricité de France.
Papers
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TL;DR: Mise au point d'un modele mathematique de l'ecoulement plastique ou viscoplastique de laisse un alliage refractaire IN 100.
Abstract: Mise au point d'un modele mathematique de l'ecoulement plastique ou viscoplastique. Application a un alliage refractaire IN 100
698 citations
TL;DR: In this paper, two types of models based on a critical ratio of cavity growth or on continuum damage mechanics are presented with constant references to experimental validation studies, and conclusions can be drawn regarding the effectiveness of the methods proposed and their undeniable contribution to fracture mechanics.
687 citations
284 citations
TL;DR: Validite du modele base sur le concept de variable interne dans le cas d'un acier 316 L soumis a une contrainte cyclique a la temperature ambiante et a 600 C pour differentes vitesses de deformation and a un essai de relaxation as discussed by the authors.
Abstract: Validite du modele base sur le concept de variable interne dans le cas d'un acier 316 L soumis a une contrainte cyclique a la temperature ambiante et a 600 C pour differentes vitesses de deformation et a un essai de relaxation
207 citations
TL;DR: In this paper, the authors present a linear stability analysis of a perturbation of a set of constitutive equations for porous metal plasticity and viscoplasticity, expressions for the dissipated and stored energies, and a new form of the heat balance equation including void growth damage.
Abstract: The framework of thermodynamics of irreversible processes (TIP) enables the coherent formulation of constitutive equations for porous metal plasticity and viscoplasticity, expressions for the dissipated and stored energies, and a new form of the heat balance equation including void growth damage. These expressions are in good agreement with existing thermographic measurements, which provides additional confidence in the model. The linear stability analysis of a perturbation is applied to the whole set of equations. It gives some features of ductile fracture. Depending on the material parameters and on strain rate, shear localisation is induced by thermal softening, void growth damage, or a combination of both. Localisation is classically inhibited by inertia terms at very high strain rates, and postponed by viscosity. The combination of these phenomena creates an “adiabatic nose” in a strain–strain rate diagram. In the case of an axisymmetric stress tensor, that prevails for example in the centre of the necking zone of a round tensile specimen, a pure opening localisation can be obtained. The limitations of the analyses are mentioned.
78 citations
Cited by
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TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.
1,573 citations
TL;DR: In this paper, the cyclic constitutive equations developed and used at ONERA and LMT-Cachan are presented in detail in terms of a hierarchy of various models, including the Ohno-Kachi time-independent plasticity theory, two unified viscoplastic models by Walker and by Krempl and Yao, the new developments of the endochronic theory by Watanabe and Atluri.
1,446 citations
TL;DR: In this paper, the main ingredients and assumptions of developing macroscopic inelastic constitutive equations, mainly for metals and low strain cyclic conditions, have been discussed, with some comparisons with the previous ones, including more recent developments that offer potential new capabilities.
1,414 citations
TL;DR: In this paper, three different approaches are considered for the description of kinematic behavior: (i) the use of independent multi-yield surfaces, (ii) models with two surfaces only, (iii) the so-called "nonlinear-kinematic hardening rule" defined by a differential equation.
1,377 citations
TL;DR: In this paper, a multiscale behaviour model based on a multilevel finite element (FE2) approach is used to take into account heterogeneities in the behaviour between the fibre and matrix.
1,056 citations