Interfacial shear strength of flax fibers in thermoset resins evaluated via tensile tests of UD composites |
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| Affiliation: | 1. Institute of Polymer Mechanics, University of Latvia, 23 Aizkraukles iela, LV-1006 Rīga, Latvia;2. Swerea SICOMP AB, Manufacturing Technology, SE-941 26 Piteå, Sweden;1. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, Singapore;2. Department of Mechanical Engineering, University of Michigan, 2350 Hayward St, Ann Arbor, MI 48109, USA;3. Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research (A-STAR) Fusionopolis Way, 138634, Singapore;1. Department of Mechanical Engineering, St. Xavier''s Catholic College of Engineering, Nagercoil 629003, India;2. Department of Mechanical Engineering, VV College of Engineering, Tisaiyanvilai 627657, India;1. Centre for Composite Materials, Department of Mechanical Engineering, Kalasalingam Academy of Research and Education, 626126, India;2. Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, INTROP, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;3. Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;4. Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia;5. Department of Mechanical and Process Engineering, The Sirindhorn International ThaiGerman Graduate School of Engineering (TGGS), King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand |
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| Abstract: | A method of interfacial shear strength evaluation, based on the length distribution of fibers pulled out from the tensile fracture surface of an oriented flax-reinforced composite, is applied to composites with vinyl ester and acrylated epoxidized soy oil resin matrices. Two approaches for characterizing the strength of fibers with modified Weibull distribution, fiber fragmentation tests and fiber tension tests, are compared in the analysis of pull-out data. Interfacial shear strength is found to increase by a few percent when loading rate is increased from 1.33% to 8%/min. |
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