Progressive failure analysis of the fiber metal laminates based on chopped carbon fiber strands

Jia Xue, Wen Xue Wang, Jia Zheng Zhang, Su Jun Wu

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this study, we propose a new fiber metal laminate based on unidirectionally arrayed chopped strand (UACS) reinforced aluminum sheets, referred to as UACS/Al laminate. UACS is made by introducing slits into unidirectional carbon fiber-reinforced plastic (CFRP) prepreg. Due to the presence of discontinuous fibers, the microstructure of the UACS/Al laminate is much more complicated than the conventional fiber metal laminate, which also results in a failure progression that is more complicated. Tensile failure of the UACS/Al laminate might occur as combination of intra-laminar damage at the slits, inter-laminar damage at the interfaces, in-ply damage of the CFRP, and plastic deformation of the aluminum plies. Fabrication and tensile tests of UACS/Al laminate specimens were performed. A two-dimensional finite element model was developed with intra-laminar cohesive elements inserted into the slits of the UACS plies and with inter-laminar cohesive elements inserted into the interfaces between all laminas in the modelled UACS/Al laminates. A numerical study is conducted to investigate the influence of the shape of the cohesive laws on the FEA predictions. The combined experimental and numerical studies provide a detailed understanding of the failure progression of UACS/Al laminates under tensile load.

Original languageEnglish
Pages (from-to)364-376
Number of pages13
JournalJournal of Reinforced Plastics and Composites
Volume34
Issue number5
DOIs
Publication statusPublished - Mar 27 2015

Fingerprint

Carbon fibers
Failure analysis
Laminates
Metals
Fibers
Carbon fiber reinforced plastics
Aluminum sheet
carbon fiber
Aluminum
Plastic deformation
Finite element method
Fabrication
Microstructure

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Progressive failure analysis of the fiber metal laminates based on chopped carbon fiber strands. / Xue, Jia; Wang, Wen Xue; Zhang, Jia Zheng; Wu, Su Jun.

In: Journal of Reinforced Plastics and Composites, Vol. 34, No. 5, 27.03.2015, p. 364-376.

Research output: Contribution to journalArticle

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