The stable post-buckling behaviour of a truss-lattice panel is modelled using three complementary analysis techniques. The standard finite element method is well-established and produces accurate results, but with limited detail around the buckling load owing to the imperfection which is required to initiate the post-buckling analysis. An exact solution is developed to describe the mode shapes based on the load in the structural members, which produces excellent results in initial and advanced post-buckling. A Rayleigh-Ritz method based on a Fourier approximation to the mode shape provides the useful progression from an unbuckled to a buckled structure, giving excellent results in initial post-buckling, although is limited for advanced post-buckling.
|Number of pages||12|
|Publication status||Published - 2007|
|Event||AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Waikiki, HI, USA United States|
Duration: 1 Jan 2008 → …
|Conference||AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference|
|Country||USA United States|
|Period||1/01/08 → …|
- Shear stress
- Mathematical models
- Fourier analysis
- Approximation theory
- Structural panels
Williams, P. A., Butler, R., Kim, H. A., & Hunt, G. W. (2007). Complementary post-buckling analyses of truss-lattice shear panels. 5048-5059. Paper presented at AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Waikiki, HI, USA United States.