Experimental and numerical analysis on Mode-I delamination of CFRP laminates toughened by polyamide non-woven fabric layer

Xiaochen Sun, Guowei Zhu, Gang Liu, Xiaosu Yi, Yuxi Jia

Research output: Journal PublicationArticlepeer-review

7 Citations (Scopus)

Abstract

The objective of this research is to put forward a toughening method by using the polyamide non-woven fabric (PNF) and investigate the Mode-I fracture toughness and delamination characteristic of the toughened CFRP laminates by performing the double cantilever beam test. The effect of PNF interlayer, which is formulated by a bilinear cohesive zone model, on the Mode-I fracture of U3160-PNF/3266 laminated composites is numerically analyzed. And the intralaminar damages are considered by using strength criteria and stiffness degradation law. The influences of PNF/3266 interlayer strength, U3160/3266 laminate thickness and initial crack length on the mechanical response of laminates are studied systematically. The work by combining the experiment and simulation is helpful for the optimal design of laminated composites used in aerospace and civil engineering.

Original languageEnglish
Pages (from-to)1191-1200
Number of pages10
JournalMaterials and Structures/Materiaux et Constructions
Volume49
Issue number4
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes

Keywords

  • Cohesive zone model
  • Intralaminar damage
  • Laminated composites
  • Mode-I fracture
  • Polyamide non-woven fabric

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials

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