| 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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Groh, Rainer Mj
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (45/45 displayed)
- 2024Quantifying efficient shape-shiftingcitations
- 2024Dataset for computational and experimental buckling analysis of constant-stiffness and variable-stiffness composite cylinders
- 2023Local Analysis-Test Correlation of Tow-Steered Composite Shells with Small Cutouts
- 2023Increasing reliability of axially compressed cylinders through stiffness tailoring and optimizationcitations
- 2022Probing the stability landscape of prestressed stayed columns susceptible to mode interactioncitations
- 2021Optimization of imperfection-insensitive continuous tow sheared rocket launch structurescitations
- 2021Design of Shape-Adaptive Deployable Slat-Cove Filler for Airframe Noise Reductioncitations
- 2021Manufacture and buckling test of a variable-stiffness, variable-thickness composite cylinder under axial compressioncitations
- 2021Flexural analysis of laminated beams using zigzag theory and a mixed inverse differential quadrature method
- 2020Imperfection-Insensitive Continuous Tow-Sheared Cylinderscitations
- 2020A strain-displacement mixed formulation based on the modified couple stress theory for the flexural behaviour of laminated beams.citations
- 2020An efficient semi-analytical framework to tailor snap-through loads in bistable variable stiffness laminatescitations
- 2020Newton’s method for experimental path-following of nonlinear structures
- 2020Imperfection-Insensitive Continuous Tow Sheared Cylinder
- 2019Efficient 3D Stress Capture of Variable-Stiffness and Sandwich Beam Structurescitations
- 2019A strain-displacement variational formulation for laminated composite beams based on the modified couple stress theory
- 2019Happy Catastrophecitations
- 2019On the accuracy of localised 3D stress fields in tow-steered laminated composite structurescitations
- 2018A tailored nonlinear slat-cove filler for airframe noise reduction.
- 2018Generalised path-following for well-behaved nonlinear structurescitations
- 2018Design and testing of a passively adaptive inletcitations
- 2018Three-dimensional stress analysis for laminated composite and sandwich structurescitations
- 2018Extreme mechanics in laminated shellscitations
- 2018HCI meets Material Sciencecitations
- 2017Post-buckling analysis of variable-angle tow composite plates using Koiter's approach and the finite element methodcitations
- 2017Computationally efficient beam elements for accurate stresses in sandwich laminates and laminated composites with delaminationscitations
- 2017Investigation of failure initiation in curved composite laminates using a higher-order beam modelcitations
- 2017Adaptive air inlet for fluid flow control
- 2016Deleterious localised stress fieldscitations
- 2016Morphing structures for flow regulation
- 2016A computationally efficient 2D model for inherently equilibrated 3D stress predictions in heterogeneous laminated plates. Part Icitations
- 2016Adaptive Nonlinear Structures for Flow Regulation
- 2016Higher-order beam model for stress predictions in curved beams made from anisotropic materialscitations
- 2016A computationally efficient 2D model for inherently equilibrated 3D stress predictions in heterogeneous laminated plates. Part IIcitations
- 2016Mixed shell element for static and buckling analysis of variable angle tow composite platescitations
- 2016Koiter asymptotic analysis of Variable Angle Tow composite plates
- 2015Application of the Refined Zigzag Theory to the Modeling of Delaminations in Laminated Composites
- 2015Static inconsistencies in certain axiomatic higher-order shear deformation theories for beams, plates and shellscitations
- 2015A mixed-variational, higher-order zig-zag theory for highly heterogeneous layered structures
- 2015Mass Optimisation of Variable Angle Tow, Variable Thickness Panels with Static Failure and Buckling Constraintscitations
- 2015Full-field stress tailoring of composite laminates
- 2015On displacement-based and mixed-variational equivalent single layer theories for modelling highly heterogeneous laminated beamscitations
- 2014Buckling analysis of variable angle tow, variable thickness panels with transverse shear effectscitations
- 2014Post-buckling analysis of variable angle, variable thickness panels manufactured by Continuous Tow Shearing
- 2013Buckling analysis of variable angle tow, variable thickness panels with transverse shear effects
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.