Micro-CT analysis of the internal deformed geometry of a non-crimp 3D orthogonal weave E-glass composite reinforcement |
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| Affiliation: | 1. Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;2. Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, B-3001 Leuven, Belgium;1. Dept. of Civil Engineering, Università degli Studi di Salerno, Via Ponte Don Melillo, Fisciano (SA), I-84084, Italy;2. Department of Industrial Engineering, Università di Trento;3. Department of Structural Engineering, Polytechnic of Milano;4. Dept. of Management and Engineering, Università degli Studi di Padova, Stradella S.Nicola 3, Vicenza, 36100, Italy;5. Department of Management and Engineering, University of Padova;1. Institute of Polymer Product Engineering, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, Austria;2. Center for Lightweight Composite Technologies, ENGEL AUSTRIA GmbH, Steyrer Straße 20, 4300 St. Valentin, Austria;1. Mechanical Engineering Department, University of Delaware, DE, USA;2. Army Research Laboratory, Aberdeen Proving Ground, MD, USA;3. Center for Composite Materials, University of Delaware, DE, USA;1. Engineering Development Center, Toray Industries, Inc., 3-1 Sonoyama 3-chome, Ostu, Shiga 520-0842, Japan;2. Université de Lyon, LaMCoS, INSA Lyon, Av. Jean Capelle, F69621 Villeurbanne, France;3. Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, BE-3001 Leuven, Belgium;1. Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;2. Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, B-3001 Leuven, Belgium;1. University of Toulouse, INP-ENIT/LGP, 47 Avenue d’Azereix, 65016 Tarbes, France;2. LMPE, ENSIT, University of Tunis, 5 Avenue Hussein, BP, 56, Bâb Manara, 1008, Tunisia;3. College of Engineering and Technology, American University of the Middle East, Kuwait;4. Laboratoire Génie et Matériaux Textiles (GEMTEX), ENSAIT, 95170 Roubaix, France |
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| Abstract: | An investigation at the unit cell level of the sheared geometry of a single layer E-glass non-crimp 3D orthogonal woven reinforcement (commercialized under trademark 3WEAVE® by 3Tex Inc.) is performed by X-ray micro-computed tomography (micro-CT) observations. The aim is to observe, understand and quantify the effect of in-plane shear deformation on the composite reinforcement geometry, at meso-scale (i.e. unit cell level). It was observed that, increasing the shear deformation, Z-yarns maintain unchanged the distance between the yarns and as consequence the yarn cross-section has a reduced variation of width, mainly in the weft direction.Furthermore, the effect of the shear angle on the textile thickness during compression is measured, this being an important parameter after the forming and molding phases of a composite component production. Compression tests and micro-CT measurements of the thickness show similar values and are in agreement with the prediction obtained assuming the theoretical invariance of the volume in the considered range of shear deformations. |
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| Keywords: | A 3-Dimensional reinforcement A Fabrics/textiles A Glass fibres D Radiography |
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