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

Abstract

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.

Conference

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

Fingerprint

Buckling
Structural members
Finite element method
Defects

Keywords

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

Cite this

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.

Complementary post-buckling analyses of truss-lattice shear panels. / Williams, P A; Butler, R; Kim, H A; Hunt, G W.

2007. 5048-5059 Paper presented at AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Waikiki, HI, USA United States.

Research output: Contribution to conferencePaper

Williams, PA, Butler, R, Kim, HA & Hunt, GW 2007, 'Complementary post-buckling analyses of truss-lattice shear panels' Paper presented at AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Waikiki, HI, USA United States, 1/01/08, pp. 5048-5059.
Williams PA, Butler R, Kim HA, Hunt GW. Complementary post-buckling analyses of truss-lattice shear panels. 2007. Paper presented at AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Waikiki, HI, USA United States.
Williams, P A ; Butler, R ; Kim, H A ; Hunt, G W. / Complementary post-buckling analyses of truss-lattice shear panels. Paper presented at AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Waikiki, HI, USA United States.12 p.
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AB - 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.

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KW - Approximation theory

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