Mechanical metamaterial systems as transformation mechanisms

SE Rodríguez, EP Calius, A Khatibi, A Orifici… - Extreme Mechanics …, 2023 - Elsevier
Research in mechanical metamaterials has achieved extreme, unprecedented properties by
exploiting inhomogeneity in the form of periodic structures, enabled by advances in digital …

Experimental continuation in nonlinear dynamics: recent advances and future challenges

G Raze, G Abeloos, G Kerschen - arXiv preprint arXiv:2408.00138, 2024 - arxiv.org
Experimental continuation encompasses a set of methods that combine control and
continuation to obtain the full bifurcation diagram of a nonlinear system experimentally …

Finding transition state and minimum energy path of bistable elastic continua through energy landscape explorations

G Wan, SJ Avis, Z Wang, X Wang… - Journal of the …, 2024 - Elsevier
Mechanical bistable structures have two stable equilibria and can transit between them
under external stimuli. Due to their unique behaviors such as snap-through and substantial …

[HTML][HTML] Exploiting reprogrammable nonlinear structural springs for enhancing the manoeuvrability of a vibro-impact capsule robot

Y Zhang, J Shen, Y Yan, J Tong, R Lincoln… - Journal of Sound and …, 2024 - Elsevier
Vibro-impact capsule robots, propelled by rhythmic collisions of an internal mass triggered
by an external magnetic field, are emerging as promising tools for minimally invasive …

Active reconfiguration of multistable metamaterials for linear locomotion

J Shen, M Garrad, Q Zhang, O Leao, A Pirrera… - Physical Review B, 2023 - APS
Buckling-driven shape-shifting is increasingly being used in metamaterials to achieve
mechanical programmability and novel functionality. Here, we show that the post-buckling …

[HTML][HTML] Path following using velocity-based approach in quasi-static analysis

SK Chandrashekhara, D Zupan - International Journal of Solids and …, 2023 - Elsevier
In the present work, we propose a novel implementation of arc-length method for the
computation of equilibrium paths for frame-like structures. We exploit the advantages of …

[HTML][HTML] Quantifying efficient shape-shifting: Energy barrier measurement in multi-stable lattice metamaterials

Q Zhang, J Shen, M Garrad, F Scarpa, A Pirrera… - Thin-Walled …, 2024 - Elsevier
Shape-shifting between multiple stable deformation states offers attractive pathways to
design adaptive structures. Ideas have been conceptualised in diverse fields, including soft …

[HTML][HTML] Experimental path-following of equilibria using Newton's method. Part I: Theory, modelling, experiments

J Shen, RMJ Groh, M Schenk, A Pirrera - International Journal of Solids …, 2021 - Elsevier
Modern numerical path-following techniques provide a comprehensive suite of
computational tools to study the bifurcation behaviour of engineering structures. In contrast …

Probing the stability landscape of prestressed stayed columns susceptible to mode interaction

J Shen, RMJ Groh, MA Wadee, M Schenk… - Engineering Structures, 2022 - Elsevier
Prestressed stayed columns are structural systems where the compressive load-carrying
capacity is enhanced through pre-tensioned external cable stays. Recent theoretical studies …

Semi-analytical investigations on bistable cross-ply laminates with MFC actuators

A Haldar, PM Anilkumar, EL Jansen… - Smart Materials and …, 2021 - iopscience.iop.org
Most existing semi-analytical models to analyse multistable structures are based on the
principle of minimum potential energy, which inherently does not satisfy the in-plane …