한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2005년도 춘계학술발표대회 논문집
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- Pages.187-190
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- 2005
폐쇄형 이중세포로 된 박벽 복합재료 블레이드의 단순화 해석 모델
A Simple Beam Model for Thin-Walled Composite Blades with Closed, Two-Cell Sections
- 발행 : 2005.04.29
초록
A simple beam model based on a mixed method is proposed for the analysis of thin-walled composite blades with a two-cell airfoil section. A semi-complementary energy functional is used to obtain the beam force-displacement relations. The theory accounts for the effects of elastic couplings, shell wall thickness, warping, and warping restraint. All the kinematic relations as well as the cross-section stiffnesses are evaluated in a closed-form through the current beam formulation. The theory has been applied to two-cell composite blades with extension-torsion couplings and fairly good correlation has been observed in comparison with a detailed analysis and other literature.