Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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Cross-sectional Constants of Thin-walled Composite Blades with Elliptical Profiles

타원형 단면형상을 갖는 복합재료 박판 블레이드의 단면상수 계산

  • 박일주 (전북대학교 대학원 항공우주공학과) ;
  • 이주영 (전북대학교 대학원 항공우주공학) ;
  • 정성남 (전북대학교 기계항공시스템공학) ;
  • 신의섭 (전북대학교 기계항공시스템공학부)
  • Published : 2003.04.01
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Abstract

In this work, a closed-form analysis is performed to obtain the stiffness coefficients of thin-walled composites beams with elliptical profiles. The analytical model includes the effects of elastic couplings, shell wall thickness, torsion warping and constrained warping. Reissner's semi-complementary energy functional is used to derive the beam force-displacement relations. The theory is validated against MSC/NASTRAN results for coupled composites beams with single-cell elliptical sections. Very good correlation has been noticed for the test cases considered.

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