Research Article Open Access

A Simplified Two-Dimentional Unit Cell Model for Analyzing the Transverse Shear Stiffness of Three-Dimentional Truss-Like Core Sandwich Beam

Suphattharachai Chomphan1 and Manit Leekitwattana1
  • 1 ,
American Journal of Applied Sciences
Volume 9 No. 2, 2012, 246-249

DOI: https://doi.org/10.3844/ajassp.2012.246.249

Submitted On: 5 October 2011 Published On: 26 December 2011

How to Cite: Chomphan, S. & Leekitwattana, M. (2012). A Simplified Two-Dimentional Unit Cell Model for Analyzing the Transverse Shear Stiffness of Three-Dimentional Truss-Like Core Sandwich Beam. American Journal of Applied Sciences, 9(2), 246-249. https://doi.org/10.3844/ajassp.2012.246.249

Abstract

Problem statement: In structural analysis using finite element software, a complex three-dimensional model affects the speed of calculation time. A simplified two-dimensional model should be used for analyzing structural responses to reduce the calculation time. Approach: This study presents a study on the analysis of the transverse shear stiffness of three-dimensional truss-like core sandwich beam using a simplified two-dimensional unit cell model. Three kinds of core topologies: A truss core, an X-truss core and a bi-directional corrugated-strip core are chosen to be analyzed in this study. The presented simplified two-dimensional unit cell model is compared in transverse shear stiffness with the three-dimensional finite element unit cell model. Results: In this study, the results show that the simplified two-dimensional unit cell model can be used for analyzing the transverse shear stiffness of three-dimensional truss-like core sandwich beam with a good correlative with the three-dimensional finite element unit cell model. Conclusion: From the finding, the transverse shear stiffness of three-dimensional truss-like core sandwich beam can be obtained from the simplified two-dimensional unit cell model. This simplified two-dimensional model can be used to substitute the complex three-dimensional finite element model; consequently, the speed of calculation time is increased.

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Keywords

  • Finite element
  • sandwich beam
  • unit cell
  • two-dimensional unit
  • element model
  • shear stiffness
  • simplified two-dimensional
  • transverse shear
  • truss-like core