Refined Beam Element for Second Order Analysis of Latticed Shells

Abstract:

Based on equilibrium equation of beam, the displacement interpolating functions with shear effect of spatial beam elements which are used to simulate the structure members of latticed shells are deduced. The different displacement interpolating functions in compression and tension spatial beam-column elements are unified by the method of Maclaurin series expansion, and the unified expressions which are used to simulate structure members are equivalent to those expressed by stability functions. Numerical analyses results indicate that the second-order elastic analysis method for beam structures proposed in this paper, which can perfectly incarnate the second-order effects and the geometrical nonlinearity of the single-layer cylindrical reticulated shell, is of better accurateness and higher effectiveness.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1208-1211
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1208
• Online since: December 2014
• Authors: Lin Qi*, Hai Feng Huo
• Keywords: Beam Element, Displacement Interpolating Functions, Second-Order, Series

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