Characterization of 3D angle-interlock thermoplastic composites under high strain rate compression loadings |
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| Affiliation: | 1. Department of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, India;2. Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, India;1. MMRI/ CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4L7, Canada;2. 3M Canada Company, London, Ontario, Canada;1. School of Mechanical, Aerospace and Civil Engineering, United Kingdom;2. North West Composites Centre, School of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom;1. Lodz University of Technology, Institute of Polymer and Dye Technology, Stefanowskiego 12/16, 90924 Lodz, Poland;2. Lodz University of Technology, Institute of General and Ecological Chemistry, Zeromskiego 116, 90-924 Lodz, Poland;1. Technische Universität Dresden, Institut für Leichtbau und Kunststofftechnik, 01062 Dresden, Germany;2. Technische Universität Dresden, Institut für Magnetofluiddynamik, Mess- und Automatisierungstechnik, 01062 Dresden, Germany;3. Anton Paar GmbH, Ostfildern-Scharnhausen, 73760, Germany;1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China;2. Pearl River Water Resources Institute, Pearl River Water Resources Commission, Guangzhou, 510640, China;3. National Paper Products Quality Supervision Inspection Center, Dongguan, 523080, China |
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| Abstract: | In the present work, dynamic compression response of polypropylene (PP) based composites reinforced with Kevlar/Basalt fabrics was investigated. Two homogeneous fabrics with Kevlar (K3D) and Basalt (B3D) yarns and one hybrid (H3D) fabric with a combination of Kevlar/Basalt yarns were produced. The architecture of the fabrics was three-dimensional angle-interlock (3D-A). Three different composite laminates were manufactured using vacuum-assisted compression molding technique. The high strain rate compression loading was applied using a Split-Hopkinson Pressure Bar (SHPB) set-up at a strain rate regime of 3633–5235/s. The results indicated that the dynamic compression properties of thermoplastic 3D-A composites are strain rate sensitive. In all the composites, the peak stress, toughness and modulus were increased with strain rate. However, the strain at peak stress of Basalt reinforced composites (B3D, H3D) decreased approximately by 25%, while for K3D specimens it increased approximately by 15%. The K3D composites had a higher strain rate as compared to the B3D and H3D composites. In the case of K3D composite, except strain at peak stress, remaining dynamic properties were lower than the B3D composite, however, hybridization increased these properties. The failure mechanisms of 3D-A composites were characterized through macroscopic and scanning electron microscopy (SEM). |
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| Keywords: | 3D angle-interlock High strain rate Kevlar Basalt Hybrid Thermoplastic composites |
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