한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)
- 제2권4호
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- Pages.29-36
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- 2002
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- 1598-4095(pISSN)
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- 2287-7401(eISSN)
불규칙 진동을 받는 복합 적층보의 응력 및 파괴해석
Random Vibration Analysis of Composite Laminated Beams
초록
The responses of composite laminated beams modeled with finite element and excited by stochastic loading are studied. The cantilevered laminated beam having a 5 ply configuration is considered. The beam is 1m long, 0.1m wide, and 0.02m thick, yielding a length to thickness ratio of L/h=50. The laminated beams was assumed to be made of Born Epoxy. The four nodes at the free end of the cantilever were loaded with identical zero-mean white noise excitations. Stress and failure analysis loaded with identical zero-mean white noise excitations is carried out. Along with the obtained results, comparison and discussion are presented for the cases of symmetric-ply, antisymmetric-ply, angle-ply, and cross-ply laminated beams.