Study on intra/inter-ply shear deformation of three dimensional woven preforms for composite materials |
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| Affiliation: | 1. Ministry of Education Key Laboratory of Advanced Textile Composite Materials, Institute of Composite Materials, Tianjin Polytechnic University, Tianjin 300387, PR China;2. Division of Textiles and Clothing, Department of Biological and Agricultural Engineering, University of California, Davis, CA, USA;1. Karlsruhe Institute of Technology (KIT), Institute of Vehicle System Technology, Karlsruhe, Germany;2. Institute of Textile Technology and Process Engineering (ITV), Denkendorf, Germany;3. Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), St. Augustin, Germany;4. University of Stuttgart, Institute of Aircraft Design (IFB), Stuttgart, Germany;5. Fraunhofer Institute for Chemical Technology (ICT), Pfinztal, Germany;1. Mercedes-Benz Sindelfingen, PWT/VFT HPC F150, 71059 Sindelfingen, Germany;2. Technische Universität Dresden, Institute of Textile Machinery and High Performance Material Technology, 01062 Dresden, Germany;1. School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, UK;2. North West Composites Centre, School of Materials, The University of Manchester, UK |
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| Abstract: | This study presents the in-plane shear and interlaminar shear behavior of the three dimensional (3D) angle interlock preforms with different fabric densities. Picture frame shear tests for the 3D woven preform were carried out, the non-linear curves of shear stress versus shear angle and the deformation mechanism were analyzed. A new test method was designed to characterize the inter-ply shear property. The samples after interlaminar shear tests were also investigated through the yarn pulling-out and meso-structure to discover their deformation and failure mechanism. The results have shown that the fabric density has significant influence on the in-plane shear and inter-ply shear properties of 3D angle interlock preforms and the shear performance decreases with the increasing of the fabric density. The lower fabric density, the better deformability. The inter-ply shear damage mode is the binder yarn pulling out from the fabric. It is expected that the study can provide an experimental basis for building up the theoretical model. |
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