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The strong, stiff and weight efficient composite cylindrical shells with metal liner can withstand axial load, transverse load and higher internal pressure. In this paper, a composite corrugated sandwich cylinder with thin-wall metal liner was fabricated by integrated-solidification. Then, the damage and failure modes of the sandwich cylindrical shells were tested by quasi-static uniaxial compression tests. Finally, an equivalent monocoque shell theory was applied to predict the multi-mode failure by simplifying the sandwich cylinder to a quasi-isotropic cylinder. And the theoretical method could predict the failure modes of the sandwich cylinder within acceptable errors.

Fabrication and uniaxial compression mechanical behavior of composite corrugated-core sandwich cylinder with thin-wall metal liner