American Journal of Applied Sciences

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

Suphattharachai Chomphan and Manit Leekitwattana

DOI : 10.3844/ajassp.2012.246.249

American Journal of Applied Sciences

Volume 9, Issue 2

Pages 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.

Copyright

© 2012 Suphattharachai Chomphan and Manit Leekitwattana. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.