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Tensile properties of multilayer-connected biaxial weft knitted fabric reinforced composites for carbon fibers
Affiliation:1. National Carbon Fiber Engineering Research Center, Beijing 100029, China;;2. Beijing University of Chemical Technology, Beijing 100029, China;1. Istanbul University, Department of Mechanical Engineering, 34320 Istanbul, Turkey;2. Usak University, Department of Mechanical Engineering, 64200 Usak, Turkey;1. Tecnológico de Monterrey, Campus Monterrey, Eugenio Garza Sada 2501 Sur, Col. Tecnológico C.P. 64849, Monterrey, Nuevo León, Mexico;2. Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA;3. Centro de Investigación en Química Aplicada, Saltillo, Coah., Mexico;4. Department of Chemistry, Rice University, Houston, TX 77005, USA;5. Distinguished visiting professor. Tecnológico de Monterrey, Campus Monterrey, Mexico;1. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;2. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;1. University of Natural Resources and Applied Life Sciences Vienna, Institute of Physics and Material Science, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria;2. University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Vienna, Austria;3. Max-Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, D-14476 Potsdam, Germany;4. Vienna University of Technology, USTEM, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria;5. Montanuniversität Leoben, Institute of Physics, Franz-Josef-Strasse 18, A-8700 Leoben, Austria
Abstract:Multilayered-connected biaxial weft knitted (MBWK) fabric reinforced composites have excellent tensile properties. Three kinds of different fabrics reinforced composites are used in this paper, which are three-layer-connected biaxial weft knitted fabric, four-layer-connected biaxial weft knitted fabric and five-layer-connected biaxial weft knitted fabric. The tensile properties of MBWK fabrics reinforced composites are studied with 0° and 90° directional testing with different carbon fiber volume fractions. The results show that the carbon fiber volume fraction has significant effect on tensile strength of MBWK fabrics reinforced composites. The linear correlation between tensile strength and carbon fiber volume fraction is very well in the certain range, and failure analyses are also available by means of sample debris examination to identify the failure modes and the fracture surfaces.
Keywords:Multilayer-connected biaxial weft knitted fabric reinforced composites  Carbon fiber  Mechanical properties  One-way analysis of variance  One-dimensional linear regression
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