Computational Structural Engineering (전산구조공학)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Buckling Analysis of New Construction Material(GFRP)

건설신소재(섬유보강 플라스틱관 : GFRP)의 좌굴해석에 관한 연구

  • 조병완 (한양대학교 공과대학 토목공학과) ;
  • 조태준 (한양대학교 공과대학 토목공학과)
  • Published : 1995.06.01
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Abstract

The buckling analysis of Glass Fiber Reinforced Plastic pipes was studied through a three dimentsional finite element method. In the finite element analysis, an improved degenerated shell element with incompatible modes and assumed shear strain fields are employed with 3 displacements and 2 rotations for each joints. Buckling analysis is carried out for various thicknesses and different fiber orientations. Finite element results show that the buckling load increases as the thickness does with the variation of coupling stiffness.

유리섬유보강 플라스틱관의 좌굴해석을 하기위해 3차원의 유한 요소해석을 실시하였다. 비적합변위모드와 가정된 전단변형도장을 이용하여 각 절점에서 3개의 절점변위와 2개의 회전변위를 갖는 개선된 감절점 쉘요소를 사용하여 적측두께와 섬유배향각도에 따른 좌굴하중을 산정하였다. 해석결과, 섬유배향을 2, 4, 6, 8층까지 0.deg./90.deg. 교대로 적층시킨 경우, 적층수가 증가함에 따라 좌굴하중이 커지면서 Coupling stiffness가 변함을 알 수 있다.

Keywords

References

  1. AIAA Jo v.5 no.2 Characteristics of Boron Fibers and Boron Fiber Reinforced Plastic Composites Schwartz,R.T.
  2. Thin Shell Concrete Structures(2nd ED.) Billington,D.P.
  3. The Analysis of Laminated Composite Structures Calcote,L.R.
  4. Stresses in Plates and Shells Ugural,A.C.
  5. Progress in Applied Mechanics, The prager Anniversay Vol. On the Best First Order Linear Shell Theory Budiansky,B.;Sanders,J.L.
  6. Int. J. Num. Mthd. Eng. v.2 Analysis of Thick and Thin Shell Structures by Curved Elements Ahmad,S.;Irons,B.M.;Zienkiewicz,O.C.
  7. NASA TTF-118 Theory of Anisotorpic Shells Ambartsumyan,S.A.
  8. J. of Aerospace Sci. v.29 On the Theory of Laminated Anisotropic Shells and Plates Dong,S.B.;Taylor,R.L.
  9. F. E. Software for Plates arid Shells Hinton,E.;Owen,D.R.J.