Shock propagation behaviour and determination of Gruneisen state of equation for pultruded polyester/glass fibre-reinforced composites.  

Mukherji, Arindam; Njuguna, James

Abstract

Polyester fibres reinforced with glass fibres hybridised polyester resin composite (PFR/GFHC) is a unconventional complex high-molecular weight crosslinked network polymer composite. This novel composite can be used in the manufacture of structural body parts for lightweight vehicles, armour vest for body protection as well as armours for vehicles. For body armour applications, it is important to determine the dynamic behaviour of PFR/GFHC during high velocity impact. In this work, we propose a method of calculating Gurneisen parameter from the measured Hugoniot in shock velocity – particle velocity of polyester based composites product by high velocity actuated nail gun impact. Several high-velocity impacts were conducted on pultruded plates using a power actuated nail gun with different cartridges and varying nail sizes. The experimentally measured Hugoniot in shock velocity – particle velocity space was determined as Us = 2.872 + 1.22Up (ρ0 = 1.25 g/cc) and low gradient observed for Gruneisen parameter as calculated from measured Hugoniot against V0/V shows higher shock absorption of PFR/GFHC for impact velocity.

Citation

MUKHERJI, A. and NJUGUNA, J. 2021. Shock propagation behaviour and determination of Gruneisen state of equation for pultruded polyester/glass fibre-reinforced composites. Composite structures [online], 262, article ID 113444. Available from: https://doi.org/10.1016/j.compstruct.2020.113444

• Journal Article Type: Article
• Acceptance Date: Dec 8, 2020
• Online Publication Date: Dec 15, 2020
• Publication Date: Apr 15, 2021
• Deposit Date: Dec 15, 2020
• Publicly Available Date: Dec 16, 2021
• Journal: Composite structures
• Print ISSN: 0263-8223
• Electronic ISSN: 1879-1085
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 262
• Article Number: 113444
• DOI: https://doi.org/10.1016/j.compstruct.2020.113444
• Keywords: Composites; Gruneisen parameter; Hugoniot; Shock wave; High velocity impact
• Public URL: https://rgu-repository.worktribe.com/output/1010394