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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.10
- 수록면
- 163 - 168 (6page)
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초록· 키워드
Underwater weapon system, because it is directly exposed to external impact, structurally strong material is required. Moreover, it is necessary to use a light material in order to take advantage of buoyancy. Satisfying material to both at the same time is a composite material. Particularly in the case of submarine composite it is often used. It is important to have a high strength enough to be able to withstand large impact, but it is also important to attenuate it. In many cases the viscoelastic damping material in a sandwich structure is inserted between the high strength composite material in accordance with the part of the submarine. The degree of attenuation due to the impact from the outside is evaluated by the loss factor. It is possible to evaluate the damping coefficient through the cantilever specimen before fabrication of large structures made up of composite material. In ASTM(American Society of Testing Materials), the cantilever pieces and test methods have been explicit. In this paper, run mode testing of the cantilever by the ASTM standard, in order to calculate the loss factor of the viscoelastic damping material by the specified expression to verify the validity of the calculated loss factor and loss of the composite beam the coefficient test it was performed. In addition, the characteristics of the material were analyzed the effect on the loss factor.
#Composite(복합재료)
#Damping material(감쇠재)
#Loss Factor(손실계수)
#Modulus of Elasticity (탄성계수)
#Resonance Frequency(공진주파수)
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목차
- ABSTRACT
- 1. 서론
- 2. 본론
- 3. 결론
- 참고문헌
참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2016-539-002016461
