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![Edge-on view: time sequence of local post-buckling deformations in the axially compressed blade-stiffened flat panel](thumbnails/s31.jpg) |
![History of maximum hoop stress in a finite element during the STAGS transient analysis of the axially compressed blade-stiffened flat panel](thumbnails/s32.jpg) |
![Composite lattice structure ready for buckling test](thumbnails/s33.jpg) |
![Externally isogrid-stiffened cylinder-like shell](thumbnails/s34.jpg) |
![Isogrid wall on a laminated composite cylindrical shell](thumbnails/s35.jpg) |
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Edge-on view: time sequence of local post-buckling deformations in the axially compressed blade-stiffened flat panel |
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History of maximum hoop stress in a finite element during the STAGS transient analysis of the axially compressed blade-stiffened flat panel |
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Composite lattice structure ready for buckling test |
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Externally isogrid-stiffened cylinder-like shell |
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Isogrid wall on a laminated composite cylindrical shell |
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![Isogrid wall of a very large aluminum plate to be formed into a large-diameter cylindrical shell](thumbnails/s36.jpg) |
![Internally isogrid-stiffened cylindrical shell](thumbnails/s37.jpg) |
![Lexan isogrid cylindrical shell ready for testing under axial compression](thumbnails/s38.jpg) |
![Lexan isogrid cylindrical shell installed in the test machine](thumbnails/s39.jpg) |
![Buckled axially compressed isogrid Lexan cylindrical shell](thumbnails/s40.jpg) |
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Isogrid wall of a very large aluminum plate to be formed into a large-diameter cylindrical shell |
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Internally isogrid-stiffened cylindrical shell |
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Lexan isogrid cylindrical shell ready for testing under axial compression |
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Lexan isogrid cylindrical shell installed in the test machine |
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Buckled axially compressed isogrid Lexan cylindrical shell |
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![Buckled axially compressed isogrid-stiffened, Lexan cylindrical shell](thumbnails/s41.jpg) |
![Early inter-ring buckling of internally Z-ring-stiffened externally pressurized aluminum cylindrical shell](thumbnails/s42.jpg) |
![Advanced inter-ring buckling of internally Z-ring-stiffened externally pressurized aluminum cylindrical shell](thumbnails/s43.jpg) |
![Detail of the geometry of one of the internal spot-welded rings with Z cross section](thumbnails/s44.jpg) |
![Saturn V propellant tank](thumbnails/s45.jpg) |
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Buckled axially compressed isogrid-stiffened, Lexan cylindrical shell |
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Early inter-ring buckling of internally Z-ring-stiffened externally pressurized aluminum cylindrical shell |
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Advanced inter-ring buckling of internally Z-ring-stiffened externally pressurized aluminum cylindrical shell |
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Detail of the geometry of one of the internal spot-welded rings with Z cross section |
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