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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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Clausmeyer, Till
Chemnitz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (51/51 displayed)
- 2024Enhancing damage prediction in bulk metal forming through machine learning-assisted parameter identificationcitations
- 2024Examination of Bending Stress Superposition Effect on Martensite Transformation in Austenitic Stainless Steel 304citations
- 2024Analysis of wear behavior of powder metallurgy tools in shear cutting of electrical steels
- 2023Continuous hot extrusion with a stationary valvecitations
- 2022ADAPT — A Diversely Applicable Parameter Identification Tool: Overview and full-field application examplescitations
- 2022Analytical model of the in-plane torsion testcitations
- 2021Methods for measuring large shear strains in in-plane torsion testscitations
- 2021Investigation of evolving yield surfaces of dual-phase steelscitations
- 2021Characterization of flow induced anisotropy in sheet metal at large strain
- 2021Estimation and prevention of strain localization in shear testscitations
- 2021Combined computed tomography and numerical modeling for the analysis of bending of additively manufactured cellular sheets
- 2020Adiabatic blanking of advanced high-strength steelscitations
- 2020Prediction of ductile damage in the process chain of caliber rolling and forward rod extrusioncitations
- 2020Influence of anisotropic damage evolution on cold forgingcitations
- 2020Micromechanical modeling of DP600 steelcitations
- 2020Potential and status of damage controlled forming processescitations
- 2020Prediction and analysis of damage evolution during caliber rolling and subsequent cold forward extrusioncitations
- 2019Effect of plastic strain and ductile damage on elastic modulus of multiphase steel and its impact on springback predictioncitations
- 2018Influence of cutting tool stiffness on edge formabilitycitations
- 2018Damage mechanisms and mechanical properties of high-strength multiphase steelscitations
- 2018Influence of manufacturing processes on material characterization with the grooved in-plane torsion testcitations
- 2018Material characterization for plane and curved sheets using the in-plane torsion test – An overviewcitations
- 2018Modelling of the blanking process of high-carbon steel using Lemaitre damage modelcitations
- 2018Evaluation of micro-damage by acoustic methodscitations
- 2017Investigations of ductile damage in DP600 and DC04 deep drawing steel sheets during punching
- 2017Damage in metal forming
- 2017Materials science-based simulation strategies for the adiabatic cutting process
- 2017Modeling of ductile fracture from shear to balanced biaxial tension for sheet metalscitations
- 2017Microstructural characterization and simulation of damage for geared sheet componentscitations
- 2017Influence of different yield loci on failure prediction with damage modelscitations
- 2017Identification of model parameters of fracture criteria and damage models for application in cold extrusion
- 2017Experimental analysis of anisotropic damage in dual-phase steel by resonance measurementcitations
- 2017Analysis of dislocation structures in ferritic and dual phase steels regarding continuous and discontinuous loading paths
- 2017Sheet metal characterization with the in-plane torsion test
- 2017Stress state dependency of unloading behavior in high strength steelscitations
- 2017Analysis of damage and fracture formulations in cold extrusion
- 2017Vorhersage von Schädigung in der Blechmassivumformung
- 2017Material Characterization and Validation Studies for Modeling Ductile Damage during Deep Drawingcitations
- 2017Failure assessment in sheet metal forming using a phenomenological damage model and fracture criterion: experiments, parameter identification and validationcitations
- 2017Material characterization for plane and curved sheets using the in-plane torsion test an overviewcitations
- 2017High temperature and dynamic testing of AHSS for an analytical description of the adiabatic cutting processcitations
- 2017Comparison of Gurson and Lemaitre model in the context of blanking simulation of a high strength steel
- 2016Investigations of ductile damage in DP600 and DC04 deep drawing steel sheets during punchingcitations
- 2016Damage characterization of high-strength multiphase steelscitations
- 2016Numerical investigation of blanking for metal polymer sandwich sheetscitations
- 2016Analysis of shear cutting of dual phase steel by application of an advanced damage modelcitations
- 2015Advanced material model for shear cutting of metal sheets
- 2015Erweiterung der Formänderungsgesetze beim Biegen hochfester Stahlwerkstoffe
- 2015Experimental characterization and numerical modeling of the mechanical behavior of half sandwich laminate in the context of blanking
- 2011Phenomenological modeling of anisotropy induced by evolution of the dislocation structure on the macroscopic and microscopic scale
- 2011Phenomenological modeling of anisotropy induced by evolution of the dislocation structure on the macroscopic and microscopic scalecitations
Places of action
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article
Damage mechanisms and mechanical properties of high-strength multiphase steels
Abstract
The usage of high-strength steels for structural components and reinforcement parts is inevitable for modern car-body manufacture in reaching lightweight design as well as increasing passive safety. Depending on their microstructure these steels show differing damage mechanisms and various mechanical properties which cannot be classified comprehensively via classical uniaxial tensile testing. In this research, damage initiation, evolution and final material failure are characterized for commercially produced complex-phase (CP) and dual-phase (DP) steels in a strength range between 600 and 1000 MPa. Based on these investigations CP steels with their homogeneous microstructure are characterized as damage tolerant and hence less edge-crack sensitive than DP steels. As final fracture occurs after a combination of ductile damage evolution and local shear band localization in ferrite grains at a characteristic thickness strain, this strain measure is introduced as a new parameter for local formability. In terms of global formability DP steels display advantages because of their microstructural composition of soft ferrite matrix including hard martensite particles. Combining true uniform elongation as a measure for global formability with the true thickness strain at fracture for local formability the mechanical material response can be assessed on basis of uniaxial tensile testing incorporating all microstructural characteristics on a macroscopic scale. Based on these findings a new classification scheme for the recently developed high-strength multiphase steels with significantly better formability resulting of complex underlying microstructures is introduced. The scheme overcomes the steel designations using microstructural concepts, which provide no information about design and production properties.