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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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Yakushina, Evgenia
Laboratory of Microstructure Studies and Mechanics of Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Deep learning enhanced Watershed for microstructural analysis using a boundary class semantic segmentationcitations
- 2023Development of the forming limit diagram for AA6016-T4 at room temperature using uniaxial tension of notched samples and a biaxial testcitations
- 2022Tailoring titanium sheet metal using laser metal deposition to improve room temperature single-point incremental formingcitations
- 2021Effect of machining induced microstructure changes on the edge formability of titanium alloys at room temperature
- 2021Influence of longitudinal scratch defects on the bendability of titanium alloycitations
- 2020Influence of sheet conditions on in-plane strain evolution via ex-situ tensile deformation of Ti-3Al-2.5V at room temperaturecitations
- 2020Examining failure behaviour of commercially pure titanium during tensile deformation and hole expansion testcitations
- 2020Impact of machining induced surface defects on the edge formability of commercially pure titanium sheet at room temperaturecitations
- 2019Effect of edge conditions on the formability of commercially pure titanium sheet (Grade 2) at room temperature
- 2018The influence of the microstructure morphology of two phase Ti-6Al-4V alloy on the mechanical properties of diffusion bonded jointscitations
- 2017Automated microstructural analysis of titanium alloys using digital image processingcitations
- 2017An evaluation of H13 tool steel deformation in hot forging conditioncitations
- 2014Mechanical Properties and Microstructure of AZ31B Magnesium Alloy Processed by I-ECAPcitations
- 2014Modelling of active transformation of microstructure of two-phase Ti alloys during hot workingcitations
- 2013Mechanical properties and microstructure of AZ31B magnesium alloy processed by I-ECAP.citations
- 2010Corrosion behavior of titanium materials with an ultrafine-grained structurecitations
- 2009Nanostructuring of Ti-alloys by SPD processing to achieve superior fatigue propertiescitations
- 2008Effect of cold rolling on the structure and mechanical properties of sheets from commercial titaniumcitations
Places of action
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article
Development of the forming limit diagram for AA6016-T4 at room temperature using uniaxial tension of notched samples and a biaxial test
Abstract
Within the framework of the formability limit assessment in sheet metal forming, testing of notched tensile samples coupled with digital image correlation (DIC) has been analysed as an alternative to overcome the implications of Nakajima testing in relation to times of test preparation, cost of the equipment, presence of friction, and amount of material required for the test. Additionally, the complications of the Nakajima testing at elevated temperatures need to also be considered. In this work, specific notched sample geometries have been investigated to accurately identify the forming limits of Aluminium alloy AA6016 in T4 condition. Once the notched geometry had been defined, experimental tensile testing of the samples coupled with DIC technology allowed us to identify the formability limits of interest. Finally, a comparison at room temperature with the conventional Nakajima testing was performed experimentally. Two different methodologies for strain limit evaluation in notched samples have been investigated in the present analysis. The first one is called a position-dependent method and is based on the inverse best-fit parabola of the “bell-shaped curve”, which is used in the conventional Nakajima test. The second approach referred to a time-dependent method and is based on the strain rate evaluation at the necking zone. This strain-rate-dependent method, which works in combination with DIC measurements, was found to be more accurate to determine the necking limits than the previous one; in addition, it also provides more accurate information for the safe zone of forming.