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Elasto-plastic behavior

A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression

A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression

... Starting from low-scale mechanical properties of micro-cracked elastic materials taking into account the closed cracks friction between its lips we propose a phenomenological model with an associative ...

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A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression

A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression

... 4 Conclusion and perspectives Starting from low-scale mechanical properties of micro- cracked elastic materials and taking into account the closed cracks friction between its lips, we propose a phenomeno- logical model ...

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Multiscale modeling of the elasto-plastic behavior of architectured and nanostructured Cu-Nb composite wires and comparison with neutron diffraction experiments

Multiscale modeling of the elasto-plastic behavior of architectured and nanostructured Cu-Nb composite wires and comparison with neutron diffraction experiments

... The elasto-(visco-)plastic effective behavior of FCC and BCC polycrystalline aggregates can be studied by FEM in many aspects, as shown in Barbe et ...polycrystalline behavior ( Moulinec and ...

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Curvature of an elasto-plastic strip at finite strains : application to fast simulation of coils

Curvature of an elasto-plastic strip at finite strains : application to fast simulation of coils

... elastic behavior, that does not enable to estimate precisely the irreversible plastic deformations causing the evolution of residual stresses during the coiling ...elastic behavior anymore but on an ...

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Anisotropic elasto-plastic finite element analysis using a stress-strain interpolation method based on a polycrystalline model

Anisotropic elasto-plastic finite element analysis using a stress-strain interpolation method based on a polycrystalline model

... anisotropic elasto-plastic behavior of polycrystalline ...the plastic strain has induced a significant texture ...material behavior in a narrow stress direction defined by only five ...

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Stiction failure in microswitches due to elasto-plastic adhesive contact

Stiction failure in microswitches due to elasto-plastic adhesive contact

... the elasto-plastic behavior of the ...experience plastic deformations first. Due to the plastic behavior, the contact force on deformed asperities is lower than in the elastic ...

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Thermo-elasto-plastic simulations of femtosecond laser-induced multiple-cavity in fused silica

Thermo-elasto-plastic simulations of femtosecond laser-induced multiple-cavity in fused silica

... To understand the physical processes taking place during the heated volume relaxation, in the particular case of tightly focused beams, a thermo-elasto-plastic model has been recently implemented in a ...

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Behavior of the plastic deformation of an elasto-perfectly-plastic oscillator with noise.

Behavior of the plastic deformation of an elasto-perfectly-plastic oscillator with noise.

... an elasto-perfectly-plastic (EPP) oscillator with one single degree of freedom is employed to estimate prediction of failure of mechanical structures under random ...This elasto- plastic ...

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Failure of elasto-plastic porous materials due to void shape effects and void growth

Failure of elasto-plastic porous materials due to void shape effects and void growth

... Abstract : This work makes use of the recently proposed second-order nonlinear homogenization model (SOM) for (visco)plastic porous materials to study the influence of the Lode parameter and the stress triaxiality ...

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A comparison of displacement-based Timoshenko multi-fiber beams finite element formulations and elasto-plastic applications

A comparison of displacement-based Timoshenko multi-fiber beams finite element formulations and elasto-plastic applications

... The main purpose of the article being the influence of the different shape functions inter- polating the displacement field on the element response, we focus hereafter on displacement based Timoshenko multi-fiber beams ...

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Thermo-elasto-plastic uncoupling model of width variation for online application in automotive cold rolling process

Thermo-elasto-plastic uncoupling model of width variation for online application in automotive cold rolling process

... 7.2 Analytical thermal-elastic-plastic width variation model 7.2.1 Why develop new model? Importance of elastic and thermal deformation: According to the studies presented above for industrial rolling process of ...

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Study of the influence of friction in imperfect conical indentation for elasto-plastic material

Study of the influence of friction in imperfect conical indentation for elasto-plastic material

... Moreover, it is also noticed that, for the three materials, the plastic zones do not expand but reduce near the surface of specimen when m50?15. While the friction coefficient has a large value, the material tends ...

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An elasto-plastic self-consistent model for damaged polycrystalline materials: Theoretical formulation and numerical implementation

An elasto-plastic self-consistent model for damaged polycrystalline materials: Theoretical formulation and numerical implementation

... mechanical behavior. However, the set of active CSSs may change during plastic loading when the DCSC is used (see the details of the ultimate algorithm of Section ...polycrystalline behavior by the ...

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Elasto-visco-plastic modeling of mild steels for sheet forming applications over a large range of strain rates

Elasto-visco-plastic modeling of mild steels for sheet forming applications over a large range of strain rates

... constitutive model has been adjusted for this material using the monotonic shear and tensile tests at two strain rates shown in Figure 5. Voce’s isotropic hardening and the kinematic hardening Eq. (14) were used; the ...

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A modified secant formulation to predict the overall behavior of elasto-viscoplastic particulate composites

A modified secant formulation to predict the overall behavior of elasto-viscoplastic particulate composites

... mechanical behavior (macro- scopic and phase-averaged answers) of nonlinear aging viscoelastic particulate ...viscoelastic behavior, the internal variables representation proposed in [5] is extended to non ...

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Modelling the hysteresis composite behavior using an elasto-plasto-damage model with fractional derivatives

Modelling the hysteresis composite behavior using an elasto-plasto-damage model with fractional derivatives

... 1 INTRODUCTION The extensive use of composite materials in industrial applications requires a better understanding of their mechanical behavior. Composites materials are anisotropic and heterogeneous materials. A ...

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Identification of the parameters of an elasto-plastic model with strain-softening by inverse analysis of pressuremeter tests

Identification of the parameters of an elasto-plastic model with strain-softening by inverse analysis of pressuremeter tests

... Abstract : In this paper, we present a procedure for the identification of the parameters of constitutive models from in situ pressuremeter tests. We first develop a semi-analytical solution of the pressuremeter curve ...

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Modeling of 1D wave propagation in nonlinear soils using the elasto-plastic Iwan model by four numerical schemes

Modeling of 1D wave propagation in nonlinear soils using the elasto-plastic Iwan model by four numerical schemes

... the elasto-plastic Iwan model by four numerical schemes Diego Mercerat, Luis Fabian Bonilla, Florent de Martin, Elise Delavaud, Nathalie Glinsky, Jozef Kristek, Peter Moczo, Elif Oral, Aneta ...

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Elasto-viscoplastic tensile behavior of as-forged Ti-1023 alloy: Experiments and micromechanical modeling

Elasto-viscoplastic tensile behavior of as-forged Ti-1023 alloy: Experiments and micromechanical modeling

... the plastic behavior of α nodules ...tensile behavior at different strain-rates of a Ti-1023 alloy with a simplified nodular microstructure and a random  ...macroscopic behavior and the local ...

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A combined incremental-secant mean-field homogenization scheme with per-phase residual strains for elasto-plastic composites

A combined incremental-secant mean-field homogenization scheme with per-phase residual strains for elasto-plastic composites

... whose elastoplastic inclusions phase is much stiffer during the plastic flow than the elasto-plastic matrix mate- rial response and for elastic inclusions embedded in an ...

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