Localized damage response of carbon fiber reinforced polymer composite sandwich panel after thermal exposure |
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| Institution: | 1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. Hudong-Zhonghua Shipbuilding(Group) Co., Ltd, Shanghai 200129, PR China;3. Piezoelectric Device Laboratory, Department of Mechanics and Engineering Science, Ningbo University, Ningbo, Zhejiang 315211, PR China;1. Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria;2. Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;3. School of Chemistry, University of St Andrews, Fife KY16 9ST, United Kingdom;4. Département de Technologie, Faculté de Technologie, Université 20 Août 1955-Skikda, Skikda 21000, Algeria;5. Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Qld 4001, Australia;6. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;1. Instituto Federal de Brasília, Campus São Sebastião, Brazil;2. Instituto de Física - Universidade de Brasília, Brazil;3. International Center for Condensed Matter Physics, CP 04455, 70919-970 Brasília DF, Brazil;4. Centro de Ciências Exatas e Tecnológicas, Universidade Federal do Recôncavo da Bahia, 44380-000 Cruz das Almas, Bahia, Brazil;5. Instituto de Física, Universidade Federal de Goiás, CP 131 CEP 74001-970, Goiânia, Brazil;1. Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71467-13565, Iran;2. Nicolaus Copernicus University, Department of Chemistry, 87-100 Torun, Poland;1. College of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, PR China;2. School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China;1. Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China;2. The State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China |
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| Abstract: | An experimental study was conducted to investigate the effect of thermal exposure on indentation behavior of carbon fiber reinforced polymer composite sandwich panel (CFRPCSP) with pyramidal truss cores. Composite sandwich panels were fabricated by the hot press molding method. Subsequently, composite sandwich panels were exposed to different temperatures for 6 h. After thermal exposure, quasi-static indentation tests were carried out at room temperature. Then, the effect of thermal exposure on the failure mechanism, indentation load and energy absorption were analyzed and discussed. The results showed that the indentation load and energy absorption decreased as exposure temperature increased, which was caused by the degradation of the matrix properties and fiber-matrix interface properties at high temperature. In addition to the decrease of the indentation load and energy absorption, the failure modes also changed with exposure temperature. It is expected that this study can provide useful information for the design and application of composite sandwich panel with pyramidal truss cores at high temperature. |
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| Keywords: | Composite Sandwich panel Indentation behaviors Thermal exposure |
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