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A Study on the Surface Treatment of Prepreg with Ion to Increase Mode I Fracture Characteristics of Fiber-Reinforced Composites
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A Study on the Surface Treatment of Prepreg with Ion to Increase Mode I Fracture Characteristics of Fiber-Reinforced Composites
Lee, Gyeong-Yeop; Ji, Chang-Heon; Yang, Jun-Ho;
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In this work, the effect of surface treatment of prepreg on the mode I fracture behavior was studied. Unidirectional (0-deg) double cantilever beam (DCB) specimens were used for fracture tests. Two groups of DCB specimens were made: the first group was made of prepregs surface-treated by Ar(sup)+ ion beam under oxygen environment and the second group was made of regular prepregs. For both groups, fracture resistance curve (R-curve) was determined and compared to each other, Results showed that resistance behavior of the first group is better than that of the second group. That is, mode I fracture toughness, G(sub)Ic of the first group is 24% larger than that of the second group. SEM examination shows that the improvement of G(sub)Ic is due to the increase of interfacial strength between plies.
Graphite/Epoxy Composites;DCB Specimen;Resistan Curve;Delamination;Fracture Toughness;Compliance Calibration Method;
 Cited by
CFRP/알루미늄 복합재에서 이온도움반응법을 적용한 CFRP의 표면처리가 T-peel 강도에 미치는 영향에 대한 연구,이경엽;양준호;윤창선;최낙삼;

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