Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (4): 158-161.

• Mechanics • Previous Articles     Next Articles

Buckling of FGM Cylindrical Shells Under Combined Axial Compression and Bending Loads

Huang Huai-Wei  Han Qiang  Wei De-Min   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2010-12-10 Revised:2011-05-20 Online:2012-04-25 Published:2012-03-01
  • Contact: 黄怀纬(1979-) ，男，博士，主要从事结构稳定理论研究． E-mail:cthwhuang@scut.edu.cn
  • About author:黄怀纬(1979-) ，男，博士，主要从事结构稳定理论研究．
  • Supported by:

    广东省自然科学基金资助项目( 10151064101000062) ; 中国博士后科学基金资助项目( 20100470912) ; 华南理工大学中央高校基本科研业务费专项资金资助项目( 2009ZM0054)

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Abstract:

By combining theoretical analysis with numerical simulation,the buckling behaviors of FGM ( Functionally Graded Material) cylindrical shells under combined axial compression and bending loads are investigated. Then,on the basis of the classical Donnell shell theory,a buckling governing equation of the shells is deduced,and the critical condition for the buckling is determined via an eigenvalue analysis. Theoretically calculated results reveal that the critical load of bending buckling linearly decreases with the increase of axial compression,but increases with the content of ceramic constituent in FGM. The theoretical results are finally compared with the numerical ones obtained by ABAQUS simulation,with a good accordance being found,which means that the proposed theory is reliable.

Key words: functionally graded materials, cylindrical shell, buckling, combined load, finite element

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