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.

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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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