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http://dx.doi.org/10.3796/KSFT.2004.40.4.328

A Study on the Interlaminar Fracture Toughness of Hybrid Composites  

Kim, Hyung-Jin (Gyeongsang National University)
Gwark, Dae-Won (Gyeongsang National University)
Lee, Hern-Sik (Gyeongsang National University)
Kim, Jae-Dong (Gyeongsang National University)
Koh, Sung-Wi (Pukyong Natonal University)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.40, no.4, 2004 , pp. 328-336 More about this Journal
Abstract
This paper describes the effect of loading rate, specimen geometries and material properties for ModeⅠ and Mode Ⅱ interlaminar fracture toughness of hybrid composite by using double cantilever beam (DCB) and end notched flexure (ENF) specimen. In the range of loading rate 0.2~20mm/min, there is found to be no significant effect of loading rate with the value of critical energy release rate (Gc).The value of Gc for variation of initial crack length are nearly similar values when material properties are CF/CF and GF/GF, however, the value of Gc are highest with the increasing intial crack length at CF/GF. The SEM photographs show good fiber distribution and interfacial bonding of hybrid composites when the moulding is the CF/GF.
Keywords
Loading rate; Hybrid composite; Interlaminar fracture toughness; Initial crack Length; Fracture surface analysis;
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