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The impact fracture behaviors of CFRP/EVA composites by drop-weight impact test
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  • The impact fracture behaviors of CFRP/EVA composites by drop-weight impact test
저자명
Sun-Ho Go,Hong-Gun Kim,Hee-Jae Shin,Min-Sang Lee,Hyun-Gyung Yoon,Lee-Ku Kwac
간행물명
Carbon LettersKCI
권/호정보
2017년|21권 (통권67호)|pp.23-32 (10 pages)
발행정보
한국탄소학회|한국
파일정보
정기간행물|ENG|
PDF텍스트(3.46MB)
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영문초록

A drop weight impact test was conducted in this study to analyze the mechanical and thermal properties caused by the changes in the ratio of carbon fiber reinforced plastic (CFRP) to ethylene vinyl acetate (EVA) laminations. The ratios of CFRP to EVA were changed from 10:0 (pure CFRP) to 9:1, 8:2, 6:4, and 5:5 by manufacturing five different types of samples, and at the same time, the mechanical/thermal properties were analyzed with thermo-graphic images. As the ratio of the CFRP lamination was increased, in which the energy absorbance is dispersed by the fibers, it was more likely for the brittle failure mode to occur. In the cases of Type 3 through Type 5, in which the role of the EVA sheet is more prominent because it absorbs the impact energy rather than dispersing it, a clear form of puncture failure mode was observed. Based on the above results, it was found that all the observation values decreased as the EVA lamination increased compared with the CFRP lamination. The EVA lamination was thus found to have a very important role in reducing the impact. However, the strain and temperature were inversely propositional.

목차

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References

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