| People | Locations | Statistics |
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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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Güner, Alper
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022An industrial application case to predict galling in hot stamping processes
- 2016Enhanced granular medium-based tube and hollow profile press hardeningcitations
- 2016Deep drawing of high-strength tailored blanks by using tailored tools
- 2015Active and passive granular media-based tube press hardening
- 2015Analysis of drawbead behaviour for sandwich sheets in sheet forming simulationcitations
- 2014Effects of weld line in deep drawing of tailor welded blanks of high strength steelscitations
- 2014In-situ stress analysis with X-Ray diffraction for yield locus characterization of sheet metalscitations
- 2014Incremental analysis of springback and kinematic hardening by the variation of tension during deep drawingcitations
- 2013Finite element simulations for sheet metal forming process with functional input for the minimization of springback
- 2013Reduction of springback by use of drawing tools with locally and temporally varying stiffness
- 2013Numerical modeling of press hardening of tubes and profiles using shapeless solid as forming media
- 2013Anwendung der expliziten FEM in der Umformtechnik
- 2011A new shear test for sheet metal characterizationcitations
- 2009Analysis of the Hydraulic Bulge Test with FEA Concerning the Accuracy of the Determined Flow Curvescitations
- 2008Effiziente Simulation inkrementeller Blechumformprozesse mittels statischer Kondensation
Places of action
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article
Analysis of the Hydraulic Bulge Test with FEA Concerning the Accuracy of the Determined Flow Curves
Abstract
<jats:p>This work covers the finite element analysis of geometric and process parameters in hydraulic bulge tests in terms of the accuracy of the evaluated flow curve. The important parameters are identified and varied to cover the whole range of possible uses. The effects of these parameters are analyzed for three representative materials: aluminium, mid-strength steel, and high-strength steel. The flow curves of the materials for each set of parameters are calculated by using the results of the simulations and the membrane theory. It is seen that even with simulation results, it is not always possible to obtain the input flow curve, especially towards the end of the test. The dimensions of the sheet and the tooling affect the plastic strain development and geometry of the bulge, leading to errors in computed flow curves. In order to observe the effect of the material flow from the flange on the determined yield stresses, the function and position of the drawbeads are also examined. These parameters, together with the method used to calculate the radius of the bulge, determine the accuracy of the calculated flow curve. Guidelines for an accurate flow curve determination regarding the test set-up and calculation methods are given.</jats:p>