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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gavrus, Adinel
Institut National des Sciences Appliquées de Rennes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Contribution to the formability improvement in sheet metal stamping by a novel technique to control press kinetics
- 2022An Energy Approach Applied to Define Elasto-Plastic Constitutive Models Describing Thermomechanical Metallic Materials Behavior During Forming Processes
- 2020New phenomenological material constitutive models for the description of the Ti6Al4V titanium alloy behavior under static and dynamic loadingscitations
- 2020Elaboration and Mechanical-Electrochemical Characterisation of Open Cell Antimonial-lead Foams Made by the “Excess Salt Replication Method” for Eventual Applications in Lead-acid Batteries Manufacturingcitations
- 2019Some aspects regarding the influence of the anisotropy of an AA2021-T351 rolled thick plate on its tribological behaviourcitations
- 2017Analysis of anisotropic model and the effect of friction coefficient in a stretch forming process applied to AA2024 thin sheet
- 2017Finite element method coupled with a numerical cellular automaton model to simulate the residual stress of dual phase DP600 steel Nd:YAG laser welding
- 2017Some aspects regarding the influence of the anisotropy of an AA2021-T351 rolled thick plate on its tribological behaviour
- 2016Modeling grain orientation of DP600 steel by Nd:YAG lasercitations
- 2015Mechanical and Numerical Analysis Concerning Compressive Properties of Tin-Lead Open-Cell Foamscitations
- 2013A two-step inverse analysis approach used to identify the mechanical properties of metallic materials subjected to large plastic strains. Applications to local investigations of surface layer’s behaviour
- 2012Constitutive equation for description of metallic materials behavior during static and dynamic loadings taking into account important gradients of plastic deformationcitations
- 2012Cold rolling of a zirconium alloy: texture effects and modelling
- 2012Analysis of the anisotropic behavior and of the formability aptitude for an AA2024 alloy using the channel die compression test and the simple tension testcitations
- 2011An Anisotropic Behaviour Analysis of AA2024 Aluminium Alloy Undergoing Large Plastic Deformationscitations
- 2010A rheological analysis of solid polymers using an inverse method applied to a finite element model of the torsion and tensile tests
Places of action
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conferencepaper
New phenomenological material constitutive models for the description of the Ti6Al4V titanium alloy behavior under static and dynamic loadings
Abstract
The analysis and optimization of rapid or severe material forming process, where high gradients of plastic deformations, strain rates and temperatures are reached during the material flow, remains today a major challenge. Several light metallic alloys, as the titanium ones, are widely used in many industrial applications. Despite their wide spread adoption, particular phenomena are encountered during their machining high plastic strains gradients, heavy strain rate localization, chip segmentation, accelerated tool wear, etc. Although the recent advances in the experimental devices, it is still difficult experimentally to investigate the instantaneous mesoscopic phenomena taking place during severe forming processes. Therefore, the use of numerical simulations, in addition to specific experimental measurements, presents an efficient alternative for a better understanding of machining processes. Given thought the significant sensitivity of the modelling to the reliable definition of the thermo-visco-plastic workpiece material behavior and referring to the physically based mesoscopic constitutive model proposed in previous works of Gavrus, this study focuses on formulating and identifying phenomenological rheological laws. Their ability to accurately reproduce the isotropic plastic behavior of the Ti6Al4V titanium alloy for both static and dynamic loadings states, as well as in a wide range of plastic strains, plastic strain rates and temperatures, is checked. A specific iterative non-linear regression method is used for the identification of all corresponding material parameters. Their adequacy is discussed and comparisons with experimental results of the literature are set up. A specific user material subroutine VUHARD© is implemented into the commercial code Abaqus®/Explicit. Numerical simulations of experimental compression tests are performed to valid the rheological models' identification and the material flow prediction. A 2D Finite Element Modelling of the Ti6Al4V orthogonal cutting is performed and the accuracy of proposed constitutive models is examined. © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https//creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the 23rd International Conference on Material Forming.