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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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Hiermaier, Stefan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Modeling the dynamic fracture of concrete - a robust, efficient, and accurate mesoscale descriptioncitations
- 2023Investigation of strain rate dependent microscopic failure mechanisms in short fiber reinforced plastics using finite element simulationscitations
- 2023Miniaturization of non-assembly metallic pin-joints by LPBF-based additive manufacturing as perfect pivots for pantographic metamaterialscitations
- 2023A strain rate dependent and anisotropic failure material model for short fiber reinforced plastics based on energy density accounting for local fiber orientation
- 2023Ultrasonically welded eco-friendly sandwich panels based on upcycled thermoplastic core: An eco-mechanical characterisationcitations
- 2023Manufacturing size effect on the structural and mechanical properties of additively manufactured Ti-6Al-4V microbeamscitations
- 20222D numerical simulation of auxetic metamaterials based on force and deformation consistencycitations
- 2022Environmental assessment of discarded plastic caps as a honeycomb core: An eco-mechanical perspectivecitations
- 2022Damage evolution analysis on compression-loaded multidirectional carbon fiber laminates using ex-situ CT scanscitations
- 2022Numerical and experimental investigations on sandwich panels made with eco-friendly components under low-velocity impactcitations
- 2022Environmental assessment of discarded plastic caps as a honeycomb core : an eco‐mechanical perspectivecitations
- 2022Quantification of crack volumes in dynamically damaged soda-lime glasscitations
- 2021Strain acquisition framework and novel bending evaluation formulation for compression-loaded composites using digital image correlationcitations
- 2021Strain rate sensitivity of the additive manufacturing material Scalmalloy®citations
- 2021Strain rate sensitivity of the aluminium-magnesium-scandium alloy - Scalmalloy®
- 2021New insights into the failure front phenomenon and the equation of state of soda-lime glass under planar plate impactcitations
- 2021Strain rate sensitivity of the additive manufacturing material Scalmalloy [Registered Trade Mark]citations
- 2020Reinforced biobased adhesive for eco-friendly sandwich panelscitations
- 2020Eco-friendly sandwich panel based on bottle caps core and sustainable components: Static and dynamic characterisationcitations
- 2020Improved sustainable sandwich panels based on bottle caps corecitations
- 2020Resource analysis model and validation for selective laser melting, constituting the potential of lightweight design for material efficiencycitations
- 2017Progressive failure strain measurement of a compression loaded carbon fiber laminate
- 2015Effect of Strain Rate on the Martensitic Transformation During Plastic Deformation of an Austenitic Stainless Steelcitations
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article
Strain rate sensitivity of the aluminium-magnesium-scandium alloy - Scalmalloy®
Abstract
This work investigates the strain rate sensitivity of the aluminiummagnesium-scandium alloy Scalmalloy, which is used extensively for additive manufacturing of lightweight structures. This high strength aluminium alloy combines very good weldability, machinability and mechanical strength: it can be heat-treated to reach nominal ultimate tensile strengths in excess of 500 MPa. We report tensile tests at strain rates ranging from 10−3 /s to 103 /s at room temperature. It is well known that Al-Mg alloys exhibit a negative strain rate dependency in combination with serrated flow caused by the Portevin-Le Chatelier effect, which describes the interaction of Mg solutes with dislocation propagations. In contrast, in Al-Sc alloys, the flow stress increases with increasing strain rate and displays positive strain rate dependency. Additionally, the presence of Sc in the form of Al3-Sc provides a fine-grained microstructure which allows higher tensile and fatigue strength. This research shows how these combined effects interact in the case of Scalmalloy, which contains both Mg and Sc. Tests are performed at quasi-static, intermediate and high strain rates with a servohydraulic testing machine and a Split-Hopkinson tension bar. Local specimen strain was performed using 2D Digital Image Correlation.