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논문 기본 정보

자료유형
학술저널
저자정보
Fahad Aldaihani (Korea Maritime & Ocean University) Kweonha Park (Korea Maritime & Ocean University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제43권 제8호
발행연도
2019.10
수록면
605 - 609 (5page)
DOI
10.5916/jkosme.2019.43.8.605

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초록· 키워드

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There are different causes for failure and cracks in composite materials, such as vibrations. The behavior of a composite structure is based on its mechanical and physical properties. Modern composite materials are usually optimized to get special mechanical properties used in different applications, such as airplanes. In the present study, we investigated the free vibration behavior of copper composite plates with holes. The damping ratio and natural frequency for different samples manufactured from fiber and copper were analyzed. The holes on the sample plate were of different diameters (2, 4, 6, 8, 10, and 12 mm), and the width to diameter ratio was fixed at 6. Vibration modal analysis tests were conducted to evaluate the effect of hole size. The results showed that the natural frequency increased with an increase of the hole size in the low frequency mode under 300 Hz; however, frequency was not related to hole size over 500 Hz. Damping ratio was found to be affected by the hole size; the appropriate hole size was 2 mm in the low frequency mode and 8 mm in the high frequency mode in order to get high damping ratio.

목차

Abstract
1. Introduction
2. Experimental Setup
3. Results and discussion
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2019-559-001328360