Tensile mechanical properties of basalt fiber reinforced polymer composite under varying strain rates and temperatures |
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| Institution: | 1. College of Civil Engineering, Hunan University, Changsha, Hunan, 410082, China;2. School of Sustainable Engineering and Built Environment, Arizona State University, Tempe, AZ, 85287, United States;1. Department of “Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali”, University of Palermo, 90128 Palermo, Italy;2. CNR ITAE, Via Salita Santa Lucia sopra Contesse 5, 98126 Messina, Italy;1. Department of Industrial Engineering and Management, Dr. Ambedkar Institute of Technology, Bangalure 560 056, India;2. Department of Mechanical Engineering, Dr.Ambedkar Institute of Technology, Bangalure 560 056, India;3. Department of Mechanical Engineering, University Visvesvaraya College of Engineering, Bangalore 560001, India;1. Department of Chemistry, Inha University, 100 Inharo, Incheon, Republic of Korea;2. Department of Chemistry, Chungbuk National University, Cheongju, 360-764, Republic of Korea;3. Department of Mechanical Engineering, Kyung Hee University, Yongin, 446-701, Republic of Korea;1. Civil Engineering Dept., American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates;2. Department of Civil and Water Engineering, Laval University, 1065 avenue de la Médecine, G1V 0A6 Québec City, QC, Canada |
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| Abstract: | High-strength woven fabrics and polymers are ideal materials for use in structural and aerospace systems. It is very important to characterize their mechanical properties under extreme conditions such as varying temperatures, impact and ballistic loadings. In this present work, the effects of strain rate and temperature on the tensile properties of basalt fiber reinforced polymer (BFRP) were investigated. These composites were fabricated using vacuum assisted resin infusion (VARI). Dynamic tensile tests of BFRP coupons were conducted at strain rates ranging from 19 to 133 s?1 using a servo-hydraulic high-rate testing system. Additionally, effect of temperature ranging from ?25 to 100 °C was studied at the strain rate of 19 s?1. The failure behaviors of BFRP were recorded by a Phantom v7.3 high speed camera and analyzed using digital image correlation (DIC). The results showed that tensile strength, toughness and maximum strain increased 45.5%, 17.3% and 12.9%, respectively, as strain rate increased from 19 to 133 s?1. Moreover, tensile strength was independent of varying temperature up to 50 °C but decreased at 100 °C, which may be caused by the softening of epoxy matrix and weakening of interfaces between fibers and matrix when the glass transition temperature was exceeded. |
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| Keywords: | BFRP Dynamic testing Strain rate Temperature DIC |
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