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The effects of delamination deficiencies on compressive properties of composite grid-stiffened structures

  • Yihua Mo
  • , Gengdong Cheng
  • , Bing Wang*
  • , Xiaohong Wang
  • *Corresponding author for this work
  • Dalian University of Technology
  • Heilongjiang Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

This article provides a systematic approach to accurately predict the effects of delamination deficiencies on compressive properties of composite grid-stiffened structures. The deformation of the stiffener and the skin is investigated during a mechanical test. Cohesive elements in the finite element method were employed to calculate the ultimate load-carrying capacity. The delamination deficiencies in the interface between the skin and the stiffener have a significant effect upon its ultimate load-carrying capability compared with the delamination deficiencies in the skin and in the stiffener.

Original languageEnglish
Pages (from-to)901-916
Number of pages16
JournalMechanics of Advanced Materials and Structures
Volume25
Issue number11
DOIs
StatePublished - 18 Aug 2018

Keywords

  • Composite grid-stiffened structures
  • cohesive element
  • compression properties
  • delamination deficiencies
  • delamination growth
  • finite element method (FEM)

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