TY - JOUR
T1 - Nonlinear geometric effects in mechanical bistable morphing structures
AU - Chen, Zi
AU - Guo, Qiaohang
AU - Majidi, Carmel
AU - Chen, Wenzhe
AU - Srolovitz, David J.
AU - Haataja, Mikko P.
PY - 2012/9/14
Y1 - 2012/9/14
N2 - Bistable structures associated with nonlinear deformation behavior, exemplified by the Venus flytrap and slap bracelet, can switch between different functional shapes upon actuation. Despite numerous efforts in modeling such large deformation behavior of shells, the roles of mechanical and nonlinear geometric effects on bistability remain elusive. We demonstrate, through both theoretical analysis and tabletop experiments, that two dimensionless parameters control bistability. Our work classifies the conditions for bistability, and extends the large deformation theory of plates and shells.
AB - Bistable structures associated with nonlinear deformation behavior, exemplified by the Venus flytrap and slap bracelet, can switch between different functional shapes upon actuation. Despite numerous efforts in modeling such large deformation behavior of shells, the roles of mechanical and nonlinear geometric effects on bistability remain elusive. We demonstrate, through both theoretical analysis and tabletop experiments, that two dimensionless parameters control bistability. Our work classifies the conditions for bistability, and extends the large deformation theory of plates and shells.
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U2 - 10.1103/PhysRevLett.109.114302
DO - 10.1103/PhysRevLett.109.114302
M3 - Article
C2 - 23005634
AN - SCOPUS:84866371539
SN - 0031-9007
VL - 109
JO - Physical review letters
JF - Physical review letters
IS - 11
M1 - 114302
ER -