TY - JOUR
T1 - Buckling morphology of an elastic ring confined in an annular channel
AU - YANG, P.
AU - DANG, F.
AU - LIAO, X.
AU - CHEN, X.
N1 - The work is supported by Earth Engineering Center and Center for Advanced Materials for Energy and Environment at Columbia University. X. C. acknowledges support from the National Natural Science Foundation of China (11572238 and 11872302), Key R & D Program of Shaanxi (2018ZDXM-GY-131). P. Y. thanks the China Scholarship Council for financial support.
PY - 2019
Y1 - 2019
N2 - This paper studies the buckling morphology transition of an elastic ring confined in an annular channel. Under uniform axial strain, the ring would first form one inward blister and then transit to an "S" shape, but does not induce more blisters due to an energy barrier caused by the annular shape of the channel. In order to overcome the energy barrier, external perturbation is employed and a stable morphology with multiple blisters may be obtained. A theoretical framework is then established to calculate the bifurcation points of the shape transition, which agrees well with finite-element (FEM) simulation results. The diagrams of the stable buckling morphologies with respect to the geometrics of the elastic rings are presented, which may provide useful insights for practical applications, for example, the design of a peristaltic pump. © The Royal Society of Chemistry 2019.
AB - This paper studies the buckling morphology transition of an elastic ring confined in an annular channel. Under uniform axial strain, the ring would first form one inward blister and then transit to an "S" shape, but does not induce more blisters due to an energy barrier caused by the annular shape of the channel. In order to overcome the energy barrier, external perturbation is employed and a stable morphology with multiple blisters may be obtained. A theoretical framework is then established to calculate the bifurcation points of the shape transition, which agrees well with finite-element (FEM) simulation results. The diagrams of the stable buckling morphologies with respect to the geometrics of the elastic rings are presented, which may provide useful insights for practical applications, for example, the design of a peristaltic pump. © The Royal Society of Chemistry 2019.
UR - http://www.scopus.com/inward/record.url?scp=85068726411&partnerID=8YFLogxK
U2 - 10.1039/c9sm00806c
DO - 10.1039/c9sm00806c
M3 - Journal Article (refereed)
SN - 1744-683X
VL - 15
SP - 5443
EP - 5448
JO - Soft Matter
JF - Soft Matter
IS - 27
ER -