Numerical simulation of interlaminar damage propagation in CFRP cross-ply laminates under transverse loading

Masaaki Nishikawa, Tomonaga Okabe, Nobuo Takeda

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

This paper proposes a numerical simulation of interlaminar damage propagation in FRP laminates under transverse loading, using the finite element method. First, we conducted drop-weight impact tests on CFRP cross-ply laminates. A ply crack was generated at the center of the lowermost ply, and then a butterfly-shaped interlaminar delamination was propagated at the 90/0 ply interface. Based on these experimental observations, we present a numerical simulation of interlaminar damage propagation, using a cohesive zone model to address the energy-based criterion for damage propagation. This simulation can address the interlaminar delamination with high accuracy by locating a fine mesh near the damage process zone, while maintaining computational efficiency with the use of automatic mesh generation. The simulated results of interlaminar delamination agreed well with the experiment results. Moreover, we demonstrated that the proposed method reduces the computational cost of the simulation.

Original languageEnglish
Pages (from-to)3101-3113
Number of pages13
JournalInternational Journal of Solids and Structures
Volume44
Issue number10
DOIs
Publication statusPublished - 2007 May 15

Keywords

  • Composite material
  • Cross-ply laminate
  • Delamination
  • Finite element method
  • Transverse loading

ASJC Scopus subject areas

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

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