| 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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Shen, Jiajia
University of Exeter
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2024Unleashing the microstructural evolutions during hot deformation of as-cast AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe42Mn28Co10Cr15Si5 high entropy alloycitations
- 2024Unraveling the formation of L1$_{2}$ nano-precipitates within the FCC-phase in AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2024Unleashing the microstructural evolutions during hot deformation of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2024Quantifying efficient shape-shiftingcitations
- 2024Quantifying efficient shape-shifting:Energy barrier measurement in multi-stable lattice metamaterialscitations
- 2024Synergistic effects of Monel 400 filler wire in gas metal arc welding of CoCrFeMnNi high entropy alloycitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe 42 Mn 28 Co 10 Cr 15 Si 5 high entropy alloy:A combined in-situ synchrotron X-ray diffraction and EBSD analysiscitations
- 2024Wire arc additive manufacturing of a high-strength low-alloy steel part: environmental impacts, costs, and mechanical propertiescitations
- 2024Wire arc additive manufacturing of a high-strength low-alloy steel part ; environmental impacts, costs, and mechanical propertiescitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe42Mn28Co10Cr15Si5 high entropy alloy ; A combined in-situ synchrotron X-ray diffraction and EBSD analysiscitations
- 2024Unraveling the formation of L12 nano-precipitates within the FCC-phase in AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2023Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe42Mn28Co10Cr15Si5 metastable high entropy alloycitations
- 2023Impact of Arc‐Based Welding on the Microstructure Evolution and Mechanical Properties in Newly Developed Cr29.7Co29.7Ni35.4Al4Ti1.2 Multi‐Principal Element Alloycitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloys ; Microstructure, mechanical and functional behaviorcitations
- 2023Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe$_{42}$Mn$_{28}$Co$_{10}$Cr$_{15}$Si$_5$ metastable high entropy alloycitations
- 2023Evolution of microstructure and mechanical properties in gas tungsten arc welded dual-phase Fe$_{50}$Mn$_{30}$Co$_{10}$Cr$_{10}$ high entropy alloycitations
- 2023Microstructures in arc-welded Al$_{10}$Co$_{25}$Cr$_{8}$Fe$_{15}$Ni$_{36}$Ti$_{6}$ and A$l_{10.87}$Co$_{21.74}$Cr$_{21.74}$Cu$_{2.17}$Fe$_{21.74}$Ni$_{21.74}$ multi-principal element alloys: Comparison between experimental data and thermodynamic predictionscitations
- 2023Microstructures in arc-welded Al10Co25Cr8Fe15Ni36Ti6 and Al10.87Co21.74Cr21.74Cu2.17Fe21.74Ni21.74 multi-principal element alloyscitations
- 2023Spinodal Decomposition of B2-phase and Formation of Cr-Rich Nano-precipitates in AlCoCrFeNi2.1 Eutectic High-Entropy Alloycitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloys: microstructure, mechanical and functional behaviorcitations
- 2023Deformation behavior and strengthening effects of an eutectic AlCoCrFeNi2.1 high entropy alloy probed by in-situ synchrotron X-ray diffraction and post-mortem EBSDcitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloyscitations
- 2023Evolution of microstructure and mechanical properties in gas tungsten arc welded dual-phase Fe50Mn30Co10Cr10 high entropy alloycitations
- 2022On the short-time thermal phase-stability of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2022Gas tungsten arc welding of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2022Improving the ductility in laser welded joints of CoCrFeMnNi high entropy alloy to 316 stainless steelcitations
- 2022Improving the ductility in laser welded joints of CoCrFeMnNi high entropy alloy to 316 stainless steelcitations
- 2022Steel-copper functionally graded material produced by twin-wire and arc additive manufacturing (T-WAAM)citations
- 2022Gas tungsten arc welding of as-cast AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded material ; Development and characterizationcitations
- 2022Probing the stability landscape of prestressed stayed columns susceptible to mode interactioncitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded material: development and characterizationcitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded materialcitations
- 2021In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf high temperature shape memory alloy fabricated by laser powder bed fusioncitations
- 2021Laser welding of H-phase strengthened Ni-rich NiTi-20Zr high temperature shape memory alloycitations
- 2021In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf shape memory alloy fabricated by laser powder bed fusioncitations
- 2021Effect of heat treatments on 316 stainless steel parts fabricated by wire and arc additive manufacturing : Microstructure and synchrotron X-ray diffraction analysiscitations
- 2021Effect of heat treatments on 316 stainless steel parts fabricated by wire and arc additive manufacturing: Microstructure and synchrotron X-ray diffraction analysiscitations
- 2020Newton’s method for experimental path-following of nonlinear structures
Places of action
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article
Quantifying efficient shape-shifting
Abstract
Shape-shifting between multiple stable deformation states offers attractive pathways to design adaptive structures. Ideas have been conceptualised in diverse fields, including soft robotics and aerospace engineering. The success of shape-shifting relies on overcoming the energy barrier separating adjacent stable configurations, which necessitates efficient actuation strategies. Recently, multistable mechanical metamaterials have been designed with shape-shifting controlled by an actuator at the local scale, i.e with embedded actuation. This local, embedded actuation creates challenges for quantifying the energy barriers required for shape-shifting. Specifically, the local actuation requires a pair of forces with opposite directions and the direction of the forces must remain constant throughout the entire loading process. Moreover, the loading points must move freely in a direction perpendicular to the loading direction. We present a novel bi-axial test rig for a typical multi-stable lattice metamaterial that accurately determines the energy barrier between stable states by using an embedded actuator and inducing shape-shifting. Our experimental design features two independent actuation systems operating at different length scales: a primary one for a globally applied axial compression of the metamaterial, and a secondary local system for triggering shape-shifting between different stable configurations. Experimental data obtained using this bespoke test rig unveil the metamaterial’s response to local, embedded actuation. Excellent agreement with finite element simulations is observed, demonstrating the effectiveness of the test setup in providing measurements of the energy barrier. This work provides a valuable benchmark for measuring energy barriers in multi-stable metamaterials and paves the way for rigorous validation and verification of novel functional metamaterial and structures that leverage shape-shifting mechanisms.