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![Interior of the Space Shuttle main tank, which has both ring and stringer stiffeners](thumbnails/s46.jpg) |
![SLS takes on new buckling standards, drops Super Light alloy](thumbnails/s47.jpg) |
![Transporting the 27.5-foot diameter orthogrid-stiffened cylindrical shell to NASA's test facility](thumbnails/s48.jpg) |
![Arrival of the huge cylindrical shell at the location where it is to be crunched](thumbnails/s49.jpg) |
![A view from above of the huge, internally orthogrid-stiffened cylindrical shell before installation in the test rig](thumbnails/s50.jpg) |
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Interior of the Space Shuttle main tank, which has both ring and stringer stiffeners |
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SLS takes on new buckling standards, drops Super Light alloy |
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Transporting the 27.5-foot diameter orthogrid-stiffened cylindrical shell to NASA's test facility |
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Arrival of the huge cylindrical shell at the location where it is to be crunched |
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A view from above of the huge, internally orthogrid-stiffened cylindrical shell before installation in the test rig |
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![Two huge stiffened cylindrical shells being prepared by the NASA](thumbnails/s51.jpg) |
![Preparing for the Shell Buckling Knockdown Factor Test (2011)](thumbnails/s52.jpg) |
![Test rig for buckling very large cylindrical shells under axial compression](thumbnails/s53.jpg) |
![27.5-foot-diameter internally grid-stiffened cylindrical shell](thumbnails/s54.jpg) |
![Buckling of a 27-foot diameter, internally orthogrid stiffened, uniformly axially compressed aluminum cylindrical shell](thumbnails/s55.jpg) |
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Two huge stiffened cylindrical shells being prepared by the NASA "SBKF" project for testing under axial compression |
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Preparing for the Shell Buckling Knockdown Factor Test (2011) |
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Test rig for buckling very large cylindrical shells under axial compression |
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27.5-foot-diameter internally grid-stiffened cylindrical shell |
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Buckling of a 27-foot diameter, internally orthogrid stiffened, uniformly axially compressed aluminum cylindrical shell |
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![The assembled NASA liquid hydrogen tank for NASA's Space Launch System (SLS)](thumbnails/s56.jpg) |
![NASA LH2 Qualification Tank for the Space Launch System (SLS) is prepared for testing](thumbnails/s57.jpg) |
![Saturn VS II: A large cylindrical shell that is subjected to axial compression during launch into space](thumbnails/s58.jpg) |
![Dr. Jerry G. Williams with composite hat-stiffened panel](thumbnails/s59.jpg) |
![Dr. Jerry G. Williams with large stiffened cylindrical shell under combined axial compression, torque and bending](thumbnails/s60.jpg) |
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The assembled NASA liquid hydrogen tank for NASA's Space Launch System (SLS) |
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NASA LH2 Qualification Tank for the Space Launch System (SLS) is prepared for testing |
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Saturn VS II: A large cylindrical shell that is subjected to axial compression during launch into space |
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Dr. Jerry G. Williams with composite hat-stiffened panel |
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Dr. Jerry G. Williams with large stiffened cylindrical shell under combined axial compression, torque and bending |
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