| 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
Probing the stability landscape of prestressed stayed columns susceptible to mode interaction
Abstract
Prestressed stayed columns are structural systems where the compressive load-carrying capacity is enhanced through pre-tensioned external cable stays. Recent theoretical studies using analytical and nonlinear finite element models have shown that, under certain configurations, this enhancement leads to a sequence of closely spaced bifurcation points beyond the critical one. This undesirable characteristic can give rise to dangerously unstable interactive post-buckling behaviour including `mode jumping' and `snaking' phenomena. Even though these highly nonlinear behaviours can be readily modelled using numerical methods, they cannot be verified robustly using traditional quasi-static testing techniques based on force or displacement control at a single point. The current work explores a novel testing concept for potential experimental implementation, from the theoretical and numerical point of view. The concept allows the stability landscape of prestressed stayed columns to be ascertained by controlling the shape of the structure at multiple points. By controlling the mode shape of the structure, it is possible to traverse limit points, path-follow otherwise unstable equilibria, pinpoint bifurcation points and branch-switch between different post-critical segments of the equilibrium manifold. To explore the feasibility of the new testing method, we have created a virtual instantiation of the experiment in the commercial finite element package Abaqus, coupled to a control algorithm that coordinates the movements of the different control points. A number of different stability phenomena that have previously been identified analytically and numerically are reproduced successfully in the virtual test environment. Moreover, a noise sensitivity study is conducted to assess the robustness of the experimental technique proposed herein. The present work lays the foundation for physically assessing the stability landscape of prestressed stayed columns in a more comprehensive way.