Post-buckling test and numerical analysis of multi-spar wing box

Huafeng Liu, Zhufeng Yue

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The bending static experiments and FEM were used to study the post-buckling performance of a composite thick-skin multi-spar wing box. The well agreements of the load-displacement curves between experiment and FEM show the FEM modeling is credible. Based on this FEM model, the post-buckling behaviors of the wing box under two different loads: concentrate and press load, were investigated. The buckling behaviors were determined by tracing the load-deflection curves using non-linear arc-length method. Numerical results present the critical load, buckling deformation behaviors, the stress distribution and the destroy process.

Original languageEnglish
Pages (from-to)607-610
Number of pages4
JournalZhongguo Jixie Gongcheng/China Mechanical Engineering
Volume21
Issue number5
StatePublished - 10 Mar 2010

Keywords

  • Composite material
  • Finite element method(FEM)
  • Multi-spar
  • Post-buckling
  • Thick skin
  • Wing box

Fingerprint

Dive into the research topics of 'Post-buckling test and numerical analysis of multi-spar wing box'. Together they form a unique fingerprint.

Cite this