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Buckling analysis of trapezoidally corrugated panels using spline finite strip method

Luo, R. / Edlund, B.

AbstractBuckling of trapezoidally corrugated panels under in-plane loading is analyzed by a spline finite strip method. The influence on the elastic buckling load of various parameters, such as geometry. loading forms and boundary conditions, etc., is studied. It is found that: (1) for longitudinal compression the buckling load increases with the corrugation angle α, and for a given α the highest buckling load is achieved when the ‘proportion parameter’ $γ = 1$ ; (2) for shear loading the buckling load increases as α increases, and for a given α the highest buckling load is obtained when $γ = 2$ ; and (3) for a combined loading of compression and shear, interactive curves can be approximated by unit circles when $α = 15°, 30°, 45°, 60° and 90°$ . However, when $α = 75°$ a parabola seems to be a better approximation. Based on the numerical experiments, simplified formulae and interactive curves are suggested for practical design.

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Buckling analysis of trapezoidally corrugated panels using spline finite strip method

Luo, R. / Edlund, B.

AbstractBuckling of trapezoidally corrugated panels under in-plane loading is analyzed by a spline finite strip method. The influence on the elastic buckling load of various parameters, such as geometry. loading forms and boundary conditions, etc., is studied. It is found that: (1) for longitudinal compression the buckling load increases with the corrugation angle α, and for a given α the highest buckling load is achieved when the ‘proportion parameter’ $γ = 1$ ; (2) for shear loading the buckling load increases as α increases, and for a given α the highest buckling load is obtained when $γ = 2$ ; and (3) for a combined loading of compression and shear, interactive curves can be approximated by unit circles when $α = 15°, 30°, 45°, 60° and 90°$ . However, when $α = 75°$ a parabola seems to be a better approximation. Based on the numerical experiments, simplified formulae and interactive curves are suggested for practical design.

Buckling analysis of trapezoidally corrugated panels using spline finite strip method

Luo, R. / Edlund, B.

AbstractBuckling of trapezoidally corrugated panels under in-plane loading is analyzed by a spline finite strip method. The influence on the elastic buckling load of various parameters, such as geometry. loading forms and boundary conditions, etc., is studied. It is found that: (1) for longitudinal compression the buckling load increases with the corrugation angle α, and for a given α the highest buckling load is achieved when the ‘proportion parameter’ $γ = 1$ ; (2) for shear loading the buckling load increases as α increases, and for a given α the highest buckling load is obtained when $γ = 2$ ; and (3) for a combined loading of compression and shear, interactive curves can be approximated by unit circles when $α = 15°, 30°, 45°, 60° and 90°$ . However, when $α = 75°$ a parabola seems to be a better approximation. Based on the numerical experiments, simplified formulae and interactive curves are suggested for practical design.

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Title:

Buckling analysis of trapezoidally corrugated panels using spline finite strip method

Contributors:

Luo, R. (author) / Edlund, B. (author)

Published in:

Thin-Walled Structures ; 18 ; 209-224

Publication date:

1993-04-19

Size:

16 pages

ISSN:

DOI:

https://doi.org/10.1016/0263-8231(94)90019-1

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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