Test-based equivalent-material method for collapse qualification of helically wound and layered cylindrical structures
Communications Engineering, Published online: 16 June 2026; doi:10.1038/s44172-026-00699-0Yuteng Zhang and colleagues propose a back-inferred equivalent material method for collapse qualification of helically wound and layered cylindrical structures. The framework infers a material law from radial compression test to predict critical collapse pressure without full-scale hydrostatic testing.