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Elastic-Plastic

Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model

Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model

... It has also been shown (Horstemeyer, 2000) that the adopted elastic-plastic constitutive laws have a very strong impact on the FLD predictions. The effect of complex strain paths is, most of the time, not ...

77

Unidirectional compression of fibre reinforcements. Part 1: A non-linear elastic-plastic behaviour

Unidirectional compression of fibre reinforcements. Part 1: A non-linear elastic-plastic behaviour

... 941 rue Charles Bourseul, BP 10838, 59508 Douai Cedex, France Liquid composite moulding processes are increasingly used to manufacture composite structures. Such processes combine compres-sion of the fibre reinforcements ...

9

Finite element prediction of sheet forming defects using elastic-plastic, damage and localization models

Finite element prediction of sheet forming defects using elastic-plastic, damage and localization models

... A robust and efficient computer implementation has been performed in a finite element code, in order to apply the developed models to forming process simulation. Direct and sequential rheological tests have been ...

7

Level set X-FEM non matching meshes: application to dynamic crack propagation in elastic-plastic media

Level set X-FEM non matching meshes: application to dynamic crack propagation in elastic-plastic media

... is intersected by the crack and that doesn’t belong to I 2 , and the set of nodes of the element(s) that contains (or have contained previously) the crack tip(s). On figure 2 the symbol ⊡ (resp. △ ) represents nodes ...

24

Boundary data identification from overspecified data for elastic-plastic linear strain-hardening bodies

Boundary data identification from overspecified data for elastic-plastic linear strain-hardening bodies

... In this communication, we propose a method that allows expanding available mechanical fields (such as stresses and displacements) available on a part of the boundary of a solid inside it and up to unreachable parts of ...

5

Ductility criterion based on ellipticity loss of the elastic-plastic tangent modulus deduced from a self consistent model

Ductility criterion based on ellipticity loss of the elastic-plastic tangent modulus deduced from a self consistent model

... Ductility criterion based on ellipticity loss of the elastic-plastic tangent modulus deduced from a self consistent model Jean-Paul Lorrain.. To cite this version: Jean-Paul Lorrain.[r] ...

173

Lax–Wendroff and TVD finite volume methods for unidimensional thermomechanical numerical simulations of impacts on elastic–plastic solids

Lax–Wendroff and TVD finite volume methods for unidimensional thermomechanical numerical simulations of impacts on elastic–plastic solids

... computed plastic strains to analytical ones, which is generally few carried ...to elastic-plastic constitutive ...approximate elastic-plastic Riemann solver for nonlinear hardenings, or ...

31

Strain localization analysis using a large deformation anisotropic elastic-plastic model coupled with damage

Strain localization analysis using a large deformation anisotropic elastic-plastic model coupled with damage

... an elastic-plastic-damaged material, while Doghri and Billardon (1995) adopted this criterion to predict the orientation of the localization bands for an elastic-plastic-damaged material ...

50

A nominally second-order cell-centered Lagrangian scheme for simulating elastic-plastic flows on two-dimensional unstructured grids

A nominally second-order cell-centered Lagrangian scheme for simulating elastic-plastic flows on two-dimensional unstructured grids

... non structur´ es bidimensionnels R´ esum´ e : In this paper, we describe a cell-centered Lagrangian scheme devoted to the numeri- cal simulation of solid dynamics on two-dimensional unstructured grids in planar ...

77

Elastic-plastic analyses using the solid-shell finite element SHB8PS and evaluation on sheet forming applications

Elastic-plastic analyses using the solid-shell finite element SHB8PS and evaluation on sheet forming applications

... anisotropic elastic-plastic behavior at large deformations and double-sided contact between sheet and tools, which are typical in sheet metal forming ...

13

Strain localization analysis deduced from a large strain elastic-plastic self-consistent model for multiphase steels

Strain localization analysis deduced from a large strain elastic-plastic self-consistent model for multiphase steels

... LPMM, UMR CNRS 7554, ENSAM ParisTech, Metz, France; 2 LEMTA, UMR CNRS 7563, Nancy University, Vandœuvre-lès-Nancy, France; 3 R&D Automotive Products, ArcelorMittal Maizières, Maizières-lès-Metz, France Abstract: In ...

12

Non-linear simulation of coiling accounting for roughness of contacts and multiplicative elastic-plastic behavior

Non-linear simulation of coiling accounting for roughness of contacts and multiplicative elastic-plastic behavior

... In this paper numerical simulations of coiling (winding of a steel strip on itself) and uncoiling are developed. Initial residual stress field is taken into account as well as roughness of contacts and ...

36

Elastic-plastic ductile damage model based on strain-rate plastic potential

Elastic-plastic ductile damage model based on strain-rate plastic potential

... In this paper, it is shown that strain-rate potentials (SRP) can be instead used to numerically model damage-plasticity couplings. Illustration of this approach is done by considering the strain rate potential which is ...

14

Strain localization analysis using a large deformation anisotropic elastic-plastic model coupled with damage

Strain localization analysis using a large deformation anisotropic elastic-plastic model coupled with damage

... coupled elastic-plastic-damage constitutive model and the localization criterion are applied to predict forming limits for monotonous and two-path straining ...

51

Elastic–plastic analysis of the peel test for ductile thin film presenting a saturation of the yield stress

Elastic–plastic analysis of the peel test for ductile thin film presenting a saturation of the yield stress

... an elastic plastic film on an elastic ...the plastic dissipation during bending/reverse bending is ...an elastic perfectly plastic ...

39

Imposed curvature of an elastic-plastic strip: application to simulation of coils

Imposed curvature of an elastic-plastic strip: application to simulation of coils

... Abstract : This work is part of the framework of a fast modeling of winding aiming at improving knowledge of residual stress evolution in steel strips and therefore their flatness during the coiling process. An exact ...

18

Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation

Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation

... of elasticplastic thin structures, the SHB8PS exhibits interesting potentialities for sheet metal forming applications – both in terms of efficiency and ...

26

On loading paths followed inside plastic simple waves in two-dimensional elastic-plastic solids

On loading paths followed inside plastic simple waves in two-dimensional elastic-plastic solids

... in elastic-plastic media In this section, the governing equations of general dynamic problems in elastic-plastic solids are first written with a tensorial formalism based on the fourth-order ...

29

Prediction of necking in thin sheet metals using an elastic‒plastic model coupled with ductile damage and bifurcation criteria

Prediction of necking in thin sheet metals using an elastic‒plastic model coupled with ductile damage and bifurcation criteria

... Anisotropic elasticplastic model coupled with ductile damage The concept of continuum damage mechanics (CDM) has been widely used in the literature to describe the degradation of the material mechanical ...

75

An improved assumed strain solid-shell element formulation with physical stabilization for geometric non-linear applications and elastic-plastic stability analysis

An improved assumed strain solid-shell element formulation with physical stabilization for geometric non-linear applications and elastic-plastic stability analysis

... 2 Laboratoire de M´ecanique des Contacts et des Structures , LaMCoS, UMR CNRS 5259, INSA de Lyon, 18-20 rue des Sciences , 69621 Villeurbanne Cedex, France SUMMARY In this paper, the earlier formulation of the SHB8PS ...

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