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| Buckling modes of an axially compressed laminated composite cylindrical shell with a sandwich wall |
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| The sandwich core foam consists of tiny steel spherical shells: a) overall interior foam, b) contact between spheres, c) foam core is not fully dense. |
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| Buckling mode of an axially compressed box tube with the type of foam-core sandwich wall shown in the previous slide |
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| Various buckling modes of an externally pressurized spherical shell with a sandwich wall construction |
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| Vibration of hemispherical sandwich shell |
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| Fig. 1. The cross section of the wall of a seven-layer cylindrical shell with a circumferentiallly oriented corrugated core |
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| Comparison of predictions from 7-layer model (previous slide) with the equivalent single-layer model |
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| Variation of the elastic modulus E through the thickness of a sandwich plate with a porous wall |
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| Sandwich core with pyramidal tubes. The compresive loading is normal to the surface of the sandwich assembly. |
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| Different sandwich core buckling modes from test and theory. |
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| Five types of sandwich cores that can be crushed by impact normal to the upper face sheet, which is removed in this picture. |
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| Honeycomb sandwich core and various inclined core geometries |
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| Single-cell sandwich core geometries and their typical modes of crushing |
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| Comparisons of test and model for crushing of various sandwich core geometries |
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