Modelling of the low-impulse blast behaviour of fibre-metal laminates based on different aluminium alloys

Thuc P. Vo, Z. W. Guan, W. J. Cantwell, G. K. Schleyer

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

A parametric study has been undertaken in order to investigate the influence of the properties of the aluminium alloy on the blast response of fibre-metal laminates (FMLs). The finite element (FE) models have been developed and validated using experimental data from tests on FMLs based on a 2024-O aluminium alloy and a woven glass-fibre/polypropylene composite (GFPP). A vectorized user material subroutine (VUMAT) was employed to define Hashin's 3D rate-dependant damage constitutive model of the GFPP. Using the validated models, a parametric study has been carried out to investigate the blast resistance of FML panels based on the four aluminium alloys, namely 2024-O, 2024-T3, 6061-T6 and 7075-T6. It has been shown that there is an approximation linear relationship between the dimensionless back face displacement and the dimensionless impulse for all aluminium alloys investigated here. It has also shown that the residual displacement of back surface of the FML panels and the internal debonding are dependent on the yield strength of the aluminium alloy.

Original languageBritish English
Pages (from-to)141-151
Number of pages11
JournalComposites Part B: Engineering
Volume44
Issue number1
DOIs
StatePublished - Jan 2013

Keywords

  • A. Glass fibres
  • B. Mechanical properties
  • C. Damage mechanics
  • C. Numerical analysis

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