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![Axisymmetric and non-axisymmetric post-buckling of a very thin spherical shell under uniform external pressure](thumbnails/s16.jpg) |
![Axisymmetric pre- and post-buckling of perfect complete spherical shell under uniform external pressure](thumbnails/s17.jpg) |
![Axisymmetric and non-axisymmetric post-buckling of a very thin spherical shell under uniform external pressure](thumbnails/s18.jpg) |
![Formula for buckling pressure of an elastic, perfect spherical shell](thumbnails/s19.jpg) |
![Buckling of imperfect thin spherical shells under uniform external pressure](thumbnails/s20.jpg) |
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Axisymmetric and non-axisymmetric post-buckling of a very thin spherical shell under uniform external pressure |
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Axisymmetric pre- and post-buckling of perfect complete spherical shell under uniform external pressure |
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Axisymmetric and non-axisymmetric post-buckling of a very thin spherical shell under uniform external pressure |
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Formula for buckling pressure of an elastic, perfect spherical shell |
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Buckling of imperfect thin spherical shells under uniform external pressure |
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![Axisymmetric (N=0) linear bifurcation buckling of an externally pressurized monocoque elastic spherical shell from BIGBOSOR4 (r/t)=100](thumbnails/s21.jpg) |
![Extreme sensitivity of buckling loads of externally pressurized spherical and axially compressed cylindrical shells to initial geometric imperfections](thumbnails/s22.jpg) |
![Axisymmetric prebuckled & early post-buckled states of an externally pressurized clamped spherical cap](thumbnails/s23.jpg) |
![Static axisymmetric buckling and postbuckling of perfect and imperfect spherical shells under uniform external pressure](thumbnails/s24.jpg) |
![Dynamic behavior of a spherical shell with an external step loading of uniform external pressure](thumbnails/s25.jpg) |
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Axisymmetric (N=0) linear bifurcation buckling of an externally pressurized monocoque elastic spherical shell from BIGBOSOR4 (r/t)=100 |
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Extreme sensitivity of buckling loads of externally pressurized spherical and axially compressed cylindrical shells to initial geometric imperfections |
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Axisymmetric prebuckled & early post-buckled states of an externally pressurized clamped spherical cap |
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Static axisymmetric buckling and postbuckling of perfect and imperfect spherical shells under uniform external pressure |
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Dynamic behavior of a spherical shell with an external step loading of uniform external pressure |
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![Axisymmetric normal displacement, w/h, of the step-loaded externally pressurized imperfect spherical shell with a polar initial dimple amplitude delta/h=0.25](thumbnails/s26.jpg) |
![Buckling knockdown factor from tests of](thumbnails/s27.jpg) |
![Fabrication process of the thin spherical hemispheres corresponding to the red and blue dots plotted in the previous image](thumbnails/s28.jpg) |
![Knockdown factor versus normalized imperfection amplitude](thumbnails/s29.jpg) |
![Post-buckling of complete spherical shells](thumbnails/s30.jpg) |
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Axisymmetric normal displacement, w/h, of the step-loaded externally pressurized imperfect spherical shell with a polar initial dimple amplitude delta/h=0.25 |
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Buckling knockdown factor from tests of "perfect" and imperfect externally pressurized spherical shells |
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Fabrication process of the thin spherical hemispheres corresponding to the red and blue dots plotted in the previous image |
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Knockdown factor versus normalized imperfection amplitude |
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Post-buckling of complete spherical shells |
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