Complementary post-buckling analyses of truss-lattice shear panels


Williams, P. A., Butler, R., Kim, H. A. and Hunt, G. W., 2007. Complementary post-buckling analyses of truss-lattice shear panels. In: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 2008-01-01, Waikiki, HI.

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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.


Item Type Conference or Workshop Items (Paper)
CreatorsWilliams, P. A., Butler, R., Kim, H. A. and Hunt, G. W.
Uncontrolled Keywordsshear stress, mathematical models, fourier analysis, buckling, approximation theory, structural panels
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresAerospace Engineering Research Centre
ID Code1477


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