Design, fabrication, and analysis of lattice exhibiting energy absorption via snap-through behavior

CS Ha, RS Lakes, ME Plesha - Materials & Design, 2018 - Elsevier
In this study, an energy absorption lattice, comprised of multiple tetra-beam-plate unit cells
with negative stiffness, was designed, fabricated by selective laser sintering method, and …

Insect-scale jumping robots enabled by a dynamic buckling cascade

Y Wang, Q Wang, M Liu, Y Qin… - Proceedings of the …, 2023 - National Acad Sciences
Millions of years of evolution have allowed animals to develop unusual locomotion
capabilities. A striking example is the legless-jumping of click beetles and trap-jaw ants …

[HTML][HTML] Mechanical response of negative stiffness truncated-conical shell systems: experiment, numerical simulation and empirical model

X Tan, S Zhu, B Wang, K Yao, S Chen, P Xu… - Composites Part B …, 2020 - Elsevier
As promising materials, the NS mechanical metamaterials bring new alternatives for energy-
absorbing materials, but also research challenges in performance prediction considering …

[HTML][HTML] Curly beam with programmable bistability

N Ghavidelnia, K Yin, B Cao, C Eberl - Materials & Design, 2023 - Elsevier
Bistable beams with prebuckled sinusoidal shape are prominently constructed into
mechanical metamaterial unit cells with bi-and multi-stability. While the effects of boundary …

FEA-based optimization and experimental verification of a typical flexure-based constant force module

B Ding, X Li, Y Li - Sensors and Actuators A: Physical, 2021 - Elsevier
To solve the problem of insufficient constant-force stroke of the compliant constant force
mechanism (CFM), a FEA-based optimization method based on structural parameters is …

Wall-bounded periodic snap-through and contact of a buckled sheet

E Mahravan, M Lahooti, D Kim - Journal of Fluid Mechanics, 2023 - cambridge.org
Fluid flow passing a post-buckled sheet placed between two close confining walls induces
periodic snap-through oscillations and contacts that can be employed for triboelectric energy …

[HTML][HTML] Snapping of elastic strips with controlled ends

A Cazzolli, F Dal Corso - International Journal of Solids and Structures, 2019 - Elsevier
Snapping mechanisms are investigated for an elastic strip with ends imposed to move and
rotate in time. Attacking the problem analytically via Euler's elastica and the second variation …

Stress-driven nonlocal model on snapping of doubly hinged shallow arches

M Altekin, RF Yükseler - Mechanics of Advanced Materials and …, 2023 - Taylor & Francis
The snap-through analysis of shallow doubly hinged sinusoidal nano-arches subjected to
sinusoidal load, considering the nonlocal effects, by using the stress-driven nonlocal model …

Modeling and experimental validation of actuating a bistable buckled beam via moment input

J Cleary, HJ Su - Journal of Applied Mechanics, 2015 - asmedigitalcollection.asme.org
Bistable mechanisms have two stable equilibrium positions separated by a higher energy
unstable equilibrium position. They are well suited for microswitches, microrelays, and many …

Force–deflection modeling for generalized origami waterbomb-base mechanisms

BH Hanna, SP Magleby… - Journal of Applied …, 2015 - asmedigitalcollection.asme.org
The origami waterbomb base (WB) is a single-vertex bistable mechanism that can be
generalized to accommodate various geometric, kinematic, and kinetic needs. The …