Failure of Glass Fibre-Reinforced Polypropylene Metal Laminate Subjected to Close-Range Explosion.

Polymers (Basel)

Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentska 2, 46117 Liberec, Czech Republic.

Published: September 2020

The present study investigates the effects of close-range blast loading of fibre metal laminates (FMLs) fabricated from woven glass polypropylene and aluminium alloy 2024-T3. The polypropylene layers and anodized aluminium are stacked in 3/2 layering configuration to investigate the impact energy absorbed through deformation and damage. In order to study the blast responses of FMLs, a 4-cable instrumented pendulum blast set-up is used. Effects of blast impulse and stand-off distance were examined. Investigation of the cross-section of FMLs are presented and damages such as fibre fracture, debonding, and global deformation are examined. Increasing stand-off distance from 4 to 14 mm resulted in a change of damage mode from highly localized perforation to global deformation.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570038PMC
http://dx.doi.org/10.3390/polym12092139DOI Listing

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