Experiments on imperfection insensitive axially loaded cylindrical shells

Xin Ning, Sergio Pellegrino

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

This paper presents an experimental study of imperfection insensitive composite wavy cylindrical shells subject to axial compression. A fabrication technique for making cylindrical shells with intricate shape of cross-sections has been developed. A photogrammetry technique to measure the geometric imperfections has also been developed. The behavior of the wavy shells under axial compression was predicted through simulations and measured through compression tests. Both the analyses and experiments have confirmed that the wavy shells are imperfection insensitive. Comparisons between the wavy shells and circular shells have also confirmed that introducing optimal symmetry-breaking wavy cross-sections can significantly reduce the imperfection sensitivity and improve the load-bearing capability of cylindrical shells.

Original languageEnglish (US)
Pages (from-to)73-86
Number of pages14
JournalInternational Journal of Solids and Structures
Volume115-116
DOIs
StatePublished - Jun 1 2017

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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