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Design and axial compression of composite sandwich cylinderical shells with corrugated cores

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a new manufacturing technique for fabricating all composite cylindrical sandwich structures with corrugated cores. We made the entire cylindrical shell including the face sheets and corrugated core using carbon fiber woven prepreg via hot press moulding technique. The entire manufacturing process involved a two-step fabrication process with the first step used to fabricate corrugated cores in longitudinal and circumferential directions. In the next step, we fabricated the curved face sheets using curved steel mould which involved attaching a number of cylindrical face sheets to the cores to complete the fabrication of cylindrical sandwich shells. The following possible failure modes of an all-carbon sandwich cylindrical shell under axial compression are studied - (a) Euler buckling (EB), (b) Shell buckling (SB), (c) Local buckling (LB) and (d) face crushing (FC). The strain and failure mechanism were investigated in detail in our experiments. Both local buckling between bonding areas and face curshing have been found in the experiments of cylindrical shells with longitudinal corrugated cores.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9783000533877
StatePublished - 2016
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 26 Jun 201630 Jun 2016

Publication series

NameECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
Country/TerritoryGermany
CityMunich
Period26/06/1630/06/16

Keywords

  • Corrugated core
  • Cylindrical shell
  • Failure mechanism maps
  • Mechanical properties
  • Sandwich structures

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