Complementary post-buckling analyses of truss-lattice shear panels

P A Williams, R Butler, H A Kim, G W Hunt

Research output: Contribution to conferencePaper

3 Citations (SciVal)


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.
Original languageEnglish
Number of pages12
Publication statusPublished - 2007
EventAIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Waikiki, HI, USA United States
Duration: 1 Jan 2008 → …


ConferenceAIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/TerritoryUSA United States
CityWaikiki, HI
Period1/01/08 → …


  • Shear stress
  • Mathematical models
  • Fourier analysis
  • Buckling
  • Approximation theory
  • Structural panels


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