A Reduced Finite Element Model for Analyzing the Transverse Shear Stiffness of Truss-Like Core Sandwich Beam | Science Publications

Journal of Computer Science

Manit Leekitwattana¹  Suphattharachai Chomphan¹ 

关键词: Finite element analysis;    sandwich beam;    unit cell;    transverse shear stiffness;    cell approach;    calculation time;    finite element equations;    factorized transverse;    accurate method;   

DOI  :  10.3844/jcssp.2011.1474.1477

学科分类：计算机科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: In structural analysis using finite element software, a number of finiteelement equations affect the speed of calculation time. A reduced finite element model should be usedfor analyzing structural responses to reduce the calculation time. Approach: This study presents theanalysis of transverse shear stiffness of truss-like core sandwich beam using the reduced finite elementmodel based on a unit cell approach. Two kinds of core topologies; an X-truss core and a bi-directionalX-truss core, were chosen to be analyzed. The presented reduced finite element model based on theunit cell approach was compared in transverse shear stiffness with the conventional three-point loadedbeam approach. Results: Results showed that the unit cell approach could be used for analyzing thetransverse shear stiffness of truss-like core sandwich beam with a good correlative with theconventional three-point loaded beam approach and a significantly reduced number of finite elementequations. Conclusion: The transverse shear stiffness of truss-like core sandwich beam can beobtained from the reduced finite element model based on unit cell approach. This reduced finiteelement model can be used to reduce the number of finite element equations; consequently, the speedof calculation time is increased.

【 授权许可】

Unknown