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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 8, 2008
Accepted March 1, 2008

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fracture behavior of carbon/epoxy laminated composite reinforced by iron powder

Heekyu Choi^† Hao Huang¹ Dong-Uk Kim¹ Chee-Ryong Joe¹

School of Nano & Advanced Materials Engineering, Changwon National University, Sarim-dong, Changwon, Gyeongnam 641-773, Korea ¹Department of Mechanical Design and Manufacturing, Changwon National University, 9 Sarim-dong, Changwon, Gyeongnam 641-773, Korea

hkchoi99@changwon.ac.kr

Korean Journal of Chemical Engineering, September 2008, 25(5), 1208-1211(4), 10.1007/s11814-008-0200-5

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Abstract

The fracture behaviors of a newly developed iron-powder reinforced carbon/epoxy laminated composite are investigated in this paper. Three kinds of DCB (double cantilever beam) specimens (without iron powder, with iron powder and with iron powder in a magnetic field) were prepared by the ASTM D 5528-94a. For the third DCB specimen, the unidirectional laminas were stacked with iron powder spread evenly on each lamina’s surface. This process was performed in a magnetic field to keep the iron powder standing along the out-plane direction. From the test data of Instron 5567, the fracture toughness, GI, was calculated by using the compliance calibration method for each of the three kinds of specimens. The calculated fracture toughness shows that the iron powder effectively disturbs the progress of fiber branching between the laminates and provides a good stitching to the in-plane laminates during the fracture.

Keywords

Powder Technology Composite Materials Iron Powder Carbon/Epoxy Composite

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