文章基本信息

标题：Numerical Simulation of Composite Plates to be used for Optimization of Mobile Bridge Deck
本地全文：下载
作者：M. Naghipour, H.M. Daniali ; S.H.A. Hashemi Kachapi
期刊名称：World Applied Sciences Journal
印刷版ISSN：1818-4952
电子版ISSN：1991-6426
出版年度：2008
卷号：4
期号：05
页码：681-690
出版社：International Digital Organization for Scientific Information Publications
摘要：In this paper, for optimization and decreasing of the weight of Military Mobile Bridges (MMB), numerical simulations of laminated composite plate, which is more applicable in manufacturing of deck of MMB were done. The maximum deflection and stress are of the major parameters that are taken in to account in the plates design. Final purpose of this paper is to obtain suitable mechanical property of composite plates. To reach to this purpose, the behavior of laminated composite plates under pressure loading is studied by using two numerical simulations. In Primary stage, Sightly plates have been solved by finite element simulation using the ANSYS software which applies the First order Shear Deformation Theory (FSDT) and the results have been compared with the results of finite difference method using the MATLAB software which applies the Classical Laminate Plate Theory (CLPT). The plates have been evaluated with actual condition of problem such as distributed load, under two clamp boundary conditions with different layers. The effects of fiber orientation, number of layers and stiffness ratio on the displacement and stress response of symmetric and anti-symmetric laminated composite plates subjected to uniformly pressure loads are presented. The deflection of central point of plates becomes minimum for 90/0° fiber orientation with 5 layers. The thickness of individual layers plays an important role in the response of the plate and stiffness ratio of 20 which it’s for composite material of Carbon Reinforce Fiber Polymer (CFRP). At result, application the composite material of CARBON/Epoxy is suitable for bridge deck where it has been extreme of strength apposite minimum density.
关键词：Military Mobile Bridge (MMB) · finite element method · finite difference method · laminate · composite materials