| Summary: | This work measured the internal pressure strengths of a periodic shell architecture, named Shellular, made of Ni-P, Cu, and silica. For this purpose, a simple and effective test method was applied. The results were analyzed using elementary mechanics and finite element analyses. The critical pressures of the most ductile Shellular specimens, made of Cu, were the highest among them, despite the low strength of Cu. Although the specimens had substantial geometrical imperfections and were made of thin shells of a micrometer, the strengths of Cu Shellulars under internal pressure were comparable to that of a conventional cylindrical pressure vessel.
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