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bistability

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Edge effect of strained bilayer nanofilms for tunable multistability and actuation

Inspired by the need to develop reconfigurable materials at the micro- and nano- scales that are capable of exhibiting more than one stable configuration, we employed both theoretical and computational models supported by experiments to study the multistable behavior of a Si/Cr microclaw and uncover the mechanical principles involved.

zichen's picture

Nonlinear geometric effects in mechanical bistable morphing structures


Bistable structures, exemplified
by the Venus flytrap and slap bracelets, can switch between different
functional shapes upon actuation, and have important applications in
mechanical/electro-mechanical devices ranging from bio-inspired robots to
deployable aeroplane wings. Despite numerous efforts in modeling such large
deformation of shell structures, the roles of mechanical and nonlinear geometric
effects on bistability remains elusive. Closely related, emerging challenges
include modeling the spontaneous curving and buckling of thin objects such as

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