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Mechanical behavior of Kevlar/basalt reinforced polypropylene composites
Affiliation:1. Department of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, India;2. Department of Textile Technology, Indian Institute of Technology Delhi, New Delhi, India;3. Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, India;1. Center for Composite Materials, University of Delaware, DE, USA;2. Department of Mechanical Engineering, University of Delaware, DE, USA;3. Department of Materials Science and Engineering, University of Delaware, DE, USA;4. Department of Civil and Environmental Engineering, University of Delaware, DE, USA;1. Advanced Carbon Products Section, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, 110012, India;2. Academy of Scientific & Innovative Research (AcSIR), India;3. Indian Reference Material Division, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, 110012, India;1. Research Scholar, Department of Mechanical Engineering, NERIST, Nirjuli-791109, Arunachal Pradesh, India;2. Associate Professor, Department of Mechanical Engineering, NERIST, Nirjuli-791109, Arunachal Pradesh, India;1. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States;2. Department of Materials Science & Engineering, University of California, Berkeley, CA 94720, United States;3. Agilent Technologies, 4330 West Chandler Boulevard, Chandler, AZ 85226, United States;4. Department of Chemical Engineering, University of California, Berkeley, CA 94720, United States;5. Department of Mechanical Engineering, University of California, Berkeley, CA 94720, United States;6. Department of Chemistry, University of California, Berkeley, CA 94720, United States
Abstract:In this study, mechanical behavior of thermoplastic composites reinforced with two-dimensional plain woven homogeneous and hybrid fabrics of Kevlar/basalt yarns was studied. Five types (two homogeneous and three hybrids) of composite laminates were manufactured using compression molding technique with polypropylene (PP) resin. Static tensile and in-plane compression tests were carried out to evaluate the mechanical properties of the laminates. The tension and in-plane compression tests had shown that the composites with the combination of Kevlar and basalt yarns present better tensile and in-plane compressive behavior as compared to their base composites. Improvement in the properties such as elastic modulus, strength and failure strain in both tension and in-plane compression was observed due to the hybridization. Numerical simulations were performed in ABAQUS/Standard by implementing a user-defined material subroutine (VUMAT) based on Chang-Chang criteria. Good agreement between the experimental and numerical simulations was achieved in terms of damage patterns.
Keywords:A. Polymer-matrix composites  A. Hybrid  A. Fabrics/textiles  B. Mechanical properties
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