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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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De Sa, Jc
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Topics
Publications (9/9 displayed)
- 2022Thermal study of a cladding layer of Inconel 625 in Directed Energy Deposition (DED) process using a phase-field modelcitations
- 2021Assessment of scatter on material properties and its influence on formability in hole expansioncitations
- 2020Fracture analysis in directed energy deposition (DED) manufactured 316L stainless steel using a phase-field approachcitations
- 2020Micromechanically-motivated phase field approach to ductile fracturecitations
- 2019Earing Profile and Wall Thickness Prediction of a Cylindrical Cup for Dual-phase Steels Using Different Yield Criteria in FE Simulationcitations
- 2017Formability prediction for AHSS materials using damage modelscitations
- 2008Failure Analysis of Metallic Materials in Sheet Metal Forming using Finite Element Method
- 2007Integration of heat transfer coefficient in glass forming modeling with special interface element
- 2000A multilevel approach to optimization of bulk forming processes
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document
Failure Analysis of Metallic Materials in Sheet Metal Forming using Finite Element Method
Abstract
The optimisation of sheet metal processes by using numerical simulations has become a key factor to a continuously increasing requirement for time and cost efficiency, for quality improvement and materials saving, in many manufacturing areas such as automotive, aerospace, building, packaging and electronic industries. The introduction of new materials brought new challenges to sheet metal forming processes. The behaviour observed with conventional steels may not be applied when using high-strength steels or aluminium alloys. Numerical codes need to model correctly the material and different constitutive equations must be considered to describe with greater accuracy its behaviour. This enhancement of material description may provide a better prediction of the forming limits, enabling an assessment of the influence of each forming parameter on the necking occurrence and the improvement of press performance. This paper presents two numerical approaches for failure prediction in sheet metal forming operations: one is the implementation of the Lemaitre's ductile damage model in the Abaqus/Explicit code in accordance with the theory of Continuum Damage Mechanics and the other is the traditional use of FLDs, usually employed as an analysis of the finite element solution in which the necking phenomenon is carried out in the framework of Marciniak-Kuczinsky (M-K) analysis coupled with the conventional theory of plasticity. The. previous strategies and corresponding results are compared with two experimental failure cases, in order to test and validate each of these strategies.