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 language | English |
|---|---|
| Pages (from-to) | 607-610 |
| Number of pages | 4 |
| Journal | Zhongguo Jixie Gongcheng/China Mechanical Engineering |
| Volume | 21 |
| Issue number | 5 |
| State | Published - 10 Mar 2010 |
Keywords
- Composite material
- Finite element method(FEM)
- Multi-spar
- Post-buckling
- Thick skin
- Wing box