조합하중을 받는 전단변형 기둥의 좌굴 후 거동 해석

Post-Buckling of Shear Deformable Uniform Columns Under a Combined Load

  • 투고 : 2003.03.03
  • 심사 : 2003.06.05
  • 발행 : 2003.06.27

초록

본 연구는 등분포 축하중과 자유단의 집중하중으로 구성된 조합하중을 받는 등단면 기둥을 대상으로 휨과 전단변형을 고려한 비선형 미분 방정식을 유도하고, 미분 변환을 적용한 수치해석을 실시하여 좌굴 하중을 구하고 좌굴 후 거동 해석을 수행하였다. 자유단의 여러가지 기울기에 따른 좌굴하중을 구하였으며, 미분 변환으로 얻어진 본 연구의 결과는 기존의 연구 결과와 양호한 대응을 나타냈다. 본 연구를 통하여 미분 변환법이 좌굴 후 거동 해석과 같은 비선형 미분방정식의 해법에 적용될 수 있음을 확인하였고, 향후 좀 더 복잡하고 다양한 문제에도 응용될 수 있을 것으로 기대된다.

The governing equation of the post-buckling of shear-deformable uniform columns under a combined load consisting of a uniformly distributed axial load and a concentrated load at a free end was derived and the post-buckling analysis was investigated by using differential transformation. The loads were obtained for various end-slopes. The results obtained by the present method agree well with published results. In this paper, the differential transformation method was illustrated through its application to the non-linear differential equation of the post-buckling. It is expected that applications of the method to more challenging problems will are expected follow in future to ensue.

키워드

참고문헌

  1. Applied Mathematics and Computation v.79 Application of Differentional Transformation to Eigenvalue Problems Chen Chao-Kuang;Ho Shing Huei https://doi.org/10.1016/0096-3003(95)00253-7
  2. Mathematica Version 4.2 For Microsoft Windows Wolfram Research Inc.
  3. International Journal of Non-Linear Mechanics v.36 Post-buckling of uniform cantilever column under a combined load Lee Kyungwoo https://doi.org/10.1016/S0020-7462(00)00047-0
  4. Journal of the Korean Society of Noise and Vibration Engineering v.12 no.5 Post-buckling of Non-uniform Cantilever Column Subjected to a Combined Load Shin Y.oung-Jae;Chiba M. https://doi.org/10.5050/KSNVN.2002.12.5.323
  5. Theory of Elastic Stability Timoshenko S. P.;Gere, J. M.
  6. Engng. Fract. Mechanic. Post-buckling of uniform cantilever column-Galerkin finite element solution Venkateswara Rao G.;Raju P. C.
  7. Differentional Transformation and Its Applications for Electrical Circuits Zhou J. K.