Dynamic stability of poroelastic columns

G. Cederbaum

doi:10.1115/1.1303983

Dynamic stability of poroelastic columns

G. Cederbaum

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The dynamic stability of a poroelastic column subjected to a longitudinal periodic force is investigated. The column material is assumed to be transversely isotropic with respect to the column axis, and the pore fluid flow is possible in the axial direction only. The motion of the column is governed by two coupled equations, for which the stability boundaries are determined analytically by using the multiple-scales method. It is shown that due to the fluid diffusion the stability regions are expanded, relative to the elastic (drained) case. The critical (minimum) loading amplitude, for which instability occurs, is also given.

Original language	English
Pages (from-to)	360-362
Number of pages	3
Journal	Journal of Applied Mechanics, Transactions ASME
Volume	67
Issue number	2
DOIs	https://doi.org/10.1115/1.1303983
State	Published - 1 Jun 2000

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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AB - The dynamic stability of a poroelastic column subjected to a longitudinal periodic force is investigated. The column material is assumed to be transversely isotropic with respect to the column axis, and the pore fluid flow is possible in the axial direction only. The motion of the column is governed by two coupled equations, for which the stability boundaries are determined analytically by using the multiple-scales method. It is shown that due to the fluid diffusion the stability regions are expanded, relative to the elastic (drained) case. The critical (minimum) loading amplitude, for which instability occurs, is also given.

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Dynamic stability of poroelastic columns

Abstract

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