한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2001년도 춘계학술발표대회 논문집
- /
- Pages.1-4
- /
- 2001
피로 손상을 입은 직교 복합재료 적층보의 진동 특성
Vibration Characterization of Cross-ply Laminates Beam with Fatigue Damage
초록
A new non-destructive fatigue prediction model of the composite laminates is developed. The natural frequencies of fatigue-damaged laminates under extensional loading are related to the fatigue lift of the laminates by establishing the equivalent flexural stiffness reduction as a function of the elastic properties of sublaminates. The flexural stiffness is derived by relating the