On a class of buckling problems in a singularly perturbed domain

Ciprian D. Coman, Andrew P. Bassom

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We consider the buckling of an annular thin elastic plate when it is subjected to uniform in-plane compressive forces on its outer boundary. This geometrical inhomogeneity means that the pre-buckling stress field is nonconstant and, as a consequence, the resulting variable-coefficient eigenproblem is not solvable in closed form. In the limit when the annulus can be regarded as a disk with a small neighbourhood of its centre removed, singular perturbation techniques are used to construct asymptotic approximations for the critical buckling loads. Our results describe both symmetric and asymmetric buckling patterns and show good agreement with some numerical simulations.

Original languageEnglish
Pages (from-to)89-103
Number of pages15
JournalQuarterly Journal of Mechanics and Applied Mathematics
Volume62
Issue number1
DOIs
Publication statusPublished - 11 Feb 2009
Externally publishedYes

Fingerprint

buckling
Singularly Perturbed
Buckling
elastic plates
Perturbation techniques
Eigenproblem
Elastic Plate
Perturbation Technique
annuli
Asymptotic Approximation
Thin Plate
Singular Perturbation
Ring or annulus
Stress Field
Variable Coefficients
Inhomogeneity
stress distribution
Closed-form
inhomogeneity
Numerical Simulation

Cite this

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On a class of buckling problems in a singularly perturbed domain. / Coman, Ciprian D.; Bassom, Andrew P.

In: Quarterly Journal of Mechanics and Applied Mathematics, Vol. 62, No. 1, 11.02.2009, p. 89-103.

Research output: Contribution to journalArticle

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AU - Bassom, Andrew P.

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