Three-dimensional woven carbon fibre polymer composite beams and plates under ballistic impact

Turner, Paul and Liu, Tao and Zeng, Xuesen and Brown, Kevin (2018) Three-dimensional woven carbon fibre polymer composite beams and plates under ballistic impact. Composite Structures, 185. pp. 483-495. ISSN 0263-8223

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Abstract

Clamped rectangular orthogonal 3D woven carbon composite beams under ballistic impact at a velocity range View the MathML source were investigated in order to understand the damage mechanisms within the material and the role of through-the-thickness (TTT) reinforcement. Experimental tests revealed three distinct categories of beam response: (i) low velocity impacts (View the MathML source) which featured projectile rebound, with dominant matrix cracking and localised fibre fracture, (ii) medium velocity impact (View the MathML source) which exhibited a stretch-deformation dominated failure mechanism, and (iii) higher velocity impacts (View the MathML source) which resulted in projectile penetration, combined with longitudinal fibre fracture at the centre of the sample. Finite element (FE) simulations were conducted to understand the experimental outcomes, which showed sufficient fidelity and captured the three distinct beam response regimes. The presence of the TTT-reinforcement can suppress the inter-laminar matrix crack propagation and increase the material ballistic impact resistance for low velocity impact and high velocity impact. However, for medium velocity impact, the in-plane fibre fracture surface was found to be at the locations of TTT-reinforcement. This may suggest that the TTT-reinforcement may create weak points for the stretch-deformation dominated failure mechanism. The verified FE simulations were conducted to predict the multi-hit ballistic impact limit surfaces for the clamped circular 3D woven composite plates, and for the equivalent laminate composite without the presence of the TTT reinforcement. The numerical results suggested the presence of TTT reinforcement could improve the multi-hit ballistic resistance of the composite plates for multi-hit scenarios where the initial impact being 50% - 95% of the ballistic limit of the plates.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
Faculty / Department / School: No Faculty
Date Deposited: 08 Jan 2018 02:15
Last Modified: 08 Jan 2018 02:36
Uncontrolled Keywords: 3D woven composites; ballistic impact experiment; multi-hit; finite element; failure mechanism
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0901 Aerospace Engineering > 090102 Aerospace Materials
09 Engineering > 0913 Mechanical Engineering > 091308 Solid Mechanics
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Identification Number or DOI: 10.1016/j.compstruct.2017.10.091
URI: http://eprints.usq.edu.au/id/eprint/33294

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