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Evaluation of Mode II Interlaminar Fracture Toughness for Carbon Fabric/Epoxy Composites for Tilting Train Carbody  

Yoon Sung-Ho (금오공과대학교 기계공학과)
Lee Eun-Dong (금오공과대학교 기계공학과)
Heo Kwang-Soo (금오공과대학교 기계공학과)
Jung Jeong-Cheol ((주)한국화이바 철도차량사업부)
Shin Kwang-Bok (한밭대학교 기계공학부)
Publication Information
Journal of the Korean Society for Railway / v.8, no.2, 2005 , pp. 195-201 More about this Journal
Abstract
Mode II interlaminar fracture behaviors of carbon fabric/epoxy composites, which are applicable to tilting train carbodies, was investigated by the ENF (End notched flexure) test. The specimens were made of CF3327 plain woven fabric with epoxy and a starter delamination at one end was made by inserting Teflon film with the thickness of 12.5$mu$m or 25.0$mu$m. The equation for mode II interlaminar fracture toughness was suggested based on the effective crack length from the compliance of load-displacement curve. Mode II interlaminar fracture toughness was evaluated for several types of the specimens. Also crack propagating behaviors and fracture surfaces were examined through an optical travelling scope and a scanning electron microscope.
Keywords
Mode 71 Fracture Toughness; Carbon Fabric/Epoxy Composites; Tilting Train Carbody;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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