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![Legendre polynomal expansion for finite element models](thumbnails/s31.jpg) |
![Nonlinear perfect and imperfect equilibrium paths and fold line](thumbnails/s32.jpg) |
![Cylindrical panel with inward point load](thumbnails/s33.jpg) |
![3-D representation of nonlinear equilibrium path for the system shown in the previous image](thumbnails/s34.jpg) |
![Elastic postbuckling curves for plates, columns, shells](thumbnails/s35.jpg) |
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Legendre polynomal expansion for finite element models |
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Nonlinear perfect and imperfect equilibrium paths and fold line |
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Cylindrical panel with inward point load |
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3-D representation of nonlinear equilibrium path for the system shown in the previous image |
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Elastic postbuckling curves for plates, columns, shells |
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![Buckling of axially compressed column](thumbnails/s36.jpg) |
![Buckling of a fixed-free rod: Euler load versus loads corrected for the effect of transverse shear deformation](thumbnails/s37.jpg) |
![Equilibrium paths for elastic-plastic columns with large (top), intermediate (middle) and small (bottom) slenderness](thumbnails/s38.jpg) |
![Postbuckling behavior of an axially compressed unstiffened rectangular plate](thumbnails/s39.jpg) |
![Variable stiffness panel by varying stiffener angle and/or composite fiber angle over the surface](thumbnails/s40.jpg) |
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Buckling of axially compressed column |
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Buckling of a fixed-free rod: Euler load versus loads corrected for the effect of transverse shear deformation |
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Equilibrium paths for elastic-plastic columns with large (top), intermediate (middle) and small (bottom) slenderness |
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Postbuckling behavior of an axially compressed unstiffened rectangular plate |
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Variable stiffness panel by varying stiffener angle and/or composite fiber angle over the surface |
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![In-plane deformation of a laminate with ϕ=90 under uniform end shortening, u0.](thumbnails/s41.jpg) |
![Upper and lower buckling loads of perfect and imperfect shells](thumbnails/s42.jpg) |
![Axially compressed laminated composite cylindrical shell: Normalized maximum stress capability versus normalized imperfection amplitude](thumbnails/s43.jpg) |
![Nonlinear load-displacement curve showing different kinds of instability](thumbnails/s44.jpg) |
![Schematic Riks-Wempner method](thumbnails/s45.jpg) |
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In-plane deformation of a laminate with ϕ=90 under uniform end shortening, u0. |
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Upper and lower buckling loads of perfect and imperfect shells |
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Axially compressed laminated composite cylindrical shell: Normalized maximum stress capability versus normalized imperfection amplitude |
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Nonlinear load-displacement curve showing different kinds of instability |
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Schematic Riks-Wempner method |
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