Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 122, Issue -, Pages 59-66Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2015.11.011
Keywords
Fiber; Fibre/matrix bond; Damage mechanics; Non-destructive testing
Categories
Funding
- Ministry of Trade, Industry & Energy, Republic of Korea [20133010021750]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20133010021750] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In seawater environment, the interfacial control between fiber and matrix can be very important to transfer high strength of each of fiber and matrix effectively. If seawater can penetrate into the interface, the area can be weak and deteriorated. In this work, the change of mechanical, interfacial and micro mechanical properties were observed after NaCl and aging treatment for glass and carbon fiber. The changes in mechanical properties of fiber were investigated using single-fiber tensile test. Interfacial properties between fiber and epoxy resin were evaluated with nondestructive acoustic emission (AE) and micromechanical fatigue test. Relative interfacial properties were evaluated from the difference in fatigue properties. The decrease of mechanical and interfacial properties was observed as well as the reduction of glass fiber diameter with aging treatment in NaCl solution. On the other hand, carbon fiber diameter was not changed and mechanical and interfacial properties were also maintained. (C) 2015 Elsevier Ltd. All rights reserved.
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