Discrete-Element Model for Buckling Analysis of Thin Ring Confined Within Rigid Boundary
Publication: Journal of Engineering Mechanics
Volume 121, Issue 1
Abstract
An elastic ring in rigid confinement may buckle inward when pressure is applied by a uniform inward movement of the confining rigid frame, particularly when a defect or initial inward deflection is present. As a result, the buckled portion of the ring becomes free of boundary pressure. This problem is known as shrink buckling, contact buckling, or one-way buckling. This problem was investigated by using three different approaches: the discrete method, the finite-element method, and an experimental method. A discrete-element model for the stability of thin rings confined within rigid boundaries was first developed, and then the critical buckling condition was derived from equilibrium equations. The frictional effect at the interface between the ring and the boundary was then taken into consideration. A finite-element model was developed and ANSYS 4.4 was used to carry out the calculations. The results from the discrete model were compared with the results from the finite-element analysis, and finally were verified by experimental results.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 121 • Issue 1 • January 1995
Pages: 71 - 79
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Jan 1, 1995
Published in print: Jan 1995
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