| 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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Brosius, Alexander
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (48/48 displayed)
- 2023Complementary database generation for machine learning in quality prediction of cold ring rolling
- 2023Kombination von Spritzgießen und Metallumformung in einem Prozess
- 2023Improvement of Machine Learning Models for Time Series Forecasting in Radial-Axial Ring Rolling through Transfer Learning
- 2023Temperature control for thermomechanical ring rollingcitations
- 2023Process Window and Repeatability of Thermomechanical Tangential Ring Rollingcitations
- 2023In-situ computed tomography and transient dynamic analysis of a single-lap shear test with a composite-metal clinch pointcitations
- 2023Softsensors: key component of property control in forming technologycitations
- 2023Forming of aluminium alloys with macro-structured tools at cryogenic temperaturecitations
- 2023Contact conditions and temperature distribution during cryogenic deep drawing with macro-structured toolscitations
- 2022Experimental measurement method and evaluation of an analytical approach for sound conduction through multiple clinched sheetscitations
- 2022Review on mechanical joining by plastic deformationcitations
- 2022Analysis of the interactions between joint and component properties during clinchingcitations
- 2022Influence of Macro-Structured Tools on the Formability of Aluminum Alloys in the Cryogenic Temperature Rangecitations
- 2022Deep drawing of DC06 at high strain ratescitations
- 2022Modeling metal forming of a magnesium alloy using an adapted material model
- 2022Local Temperature Development in the Fracture Zone during Uniaxial Tensile Testing at High Strain Rate: Experimental and Numerical Investigationscitations
- 2022Investigations on combined in situ CT and acoustic analysis during clinchingcitations
- 2021A New Non-destructive Testing Method Applied to Clinchingcitations
- 2021Residual stress oriented joining of hybrid components by radial-rollingcitations
- 2021Data based model predictive control for ring rollingcitations
- 2020Determination of Material and Failure Characteristics for High-Speed Forming via High-Speed Testing and Inverse Numerical Simulationcitations
- 2020Macro- and microstructuring of deep drawing tools for dry forming processes
- 2020Structuring of forming tools for lubricant-free deep drawingcitations
- 2019Non-linear Model-predictive-control for Thermomechanical Ring Rolling
- 2019Numerical simulation of creep forming processes of large-scale and friction stir welded AlMgSc sheets of aeronautical applications
- 2019Smart Design von Metall-FKV-Hybridstrukturen mit verknüpfter Prozess- und Struktursimulation
- 2018Investigation of Alternative Polymer Composite Materials for Forming Applications ; Untersuchung alternativer polymerer Verbundwerkstoffe für Anwendungen der Umformtechnik
- 2018Coupled process and structure analysis of metal-FRP-hybrid structures
- 2017Deep drawing process without lubrication - an adapted tool for a stable, economic and environmentally friendly processcitations
- 2015Introduction
- 2012Inkrementelle Blechumformung flexibel unterstützen
- 2012Elektromagnetisches Schweißen von Aluminiumblechen
- 2012Distortion analysis of air hardened deep drawn parts of the air-hardened steel LH800
- 2011A viscoplastic material model based on overstress for the simulation of incremental sheet forming of thermoplastics
- 2011Umformtechnisches Fügen leichter Tragwerksstrukturen
- 2011Modified plane torsion tests for sheet metal characterization
- 2011Effiziente Strangpresssimulation für industrielle Anwendungen
- 2011Advanced manufacturing and design techniques for lightweight structures
- 2010Modelling of kinematic incremental sheet forming
- 2010Development of design principles for form-fit joints in lightweight frame structures
- 2010Adapting static condensation to simulations incremental sheet metal forming
- 2009Analysis of the Hydraulic Bulge Test with FEA Concerning the Accuracy of the Determined Flow Curvescitations
- 2008Efficient modeling and calculation of sheet metal forming using steel LH800
- 2008Influence of mandrel’s surface on the mechanical properties of joints produced by electromagnetic compression
- 2008Novel layers for dies used in electromagnetic sheet metal forming processes
- 2008Effiziente Simulation inkrementeller Blechumformprozesse mittels statischer Kondensation
- 2008Zeiteffiziente Prozesskettenmodellierung und -berechnung in der Blechumformung und -verarbeitung
- 2007Study of the influence of input parameters on a springback prediction by FEA
Places of action
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document
Determination of Material and Failure Characteristics for High-Speed Forming via High-Speed Testing and Inverse Numerical Simulation
Abstract
In conventional forming processes, quasi-static conditions are a good approximation and numerical process optimization is the state of the art in industrial practice. Nevertheless, there is still a substantial need for research in the field of identification of material parameters. In production technologies with high forming velocities, it is no longer acceptable to neglect the dependency of the hardening on the forming speed. Therefore, a method for determining material characteristics in processes with high forming speeds was developed by designing and implementing a test setup and an inverse parameter identification. Two acceleration concepts were realized: a pneumatically driven one and an electromagnetically driven one. The method was verified for a mild steel and an aluminum alloy proving that the identified material parameters allow numerical modeling of high-speed processes with good accuracy. The determined material parameters for steel show significant differences for different stress states. For specimen geometries with predominantly uniaxial tensile strain at forming speeds in the order of 10(4)-10(5)/s the determined yield stress was nearly twice as high compared to shear samples; an effect which does not occur under quasi-static loading. This trend suggests a triaxiality-dependent rate dependence, which might be attributed to shear band induced strain localization and adiabatic heating.