인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2016-539-002016461