Z-pin bridging force in composite delamination

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

27 Citations (Scopus)

Abstract

This paper presents a theoretical model of z-pin reinforced mode I delamination. Study is focused on the role of the z-pin bridging law on crack growth. Three typical z-pin pull-out curves: pull-out with friction only; pull-out with an initial bonding and firction; and pull-out with an initial bonding, stable debonding and friction, are used as the bridging laws in the delamination crack growth analyses. Solutions are given for a Double-Cantilever-Beam (DCB) with different bridging laws. Comparison of the R-curves due to different bridging laws shows that a simple bi-linear function can be used as a reliable bridging law for the z-pin reinforcement. Computer simulation of model I delamination of DCB with z-pins shows good agreement between the present model and available experimental results.

Original languageEnglish
Title of host publicationEuropean Structural Integrity Society
PublisherElsevier Ltd
Pages491-502
Number of pages12
EditionC
DOIs
Publication statusPublished - 2003
Externally publishedYes

Publication series

NameEuropean Structural Integrity Society
NumberC
Volume32
ISSN (Print)1566-1369

Keywords

  • bridging law
  • Double-Cantilever-Beam (DCB)
  • mode I delamination
  • pull-out
  • Throught-thickness reinforcement
  • z-pinning

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

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