文章基本信息

标题：Finite Element Analysis of Internally Ply Drop-off Composite Laminates
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作者：Priyanka Dhurvey ; N D Mittal
期刊名称：International Journal of Engineering Research
印刷版ISSN：2319-6890
出版年度：2012
卷号：1
期号：1
页码：12-16
出版社：IJER
摘要：Tapered laminated structures, which are formed by dropping off some of the plies at discrete positions over the laminate, have received much attention from researchers because of their structural tailoring capabilities, damage tolerance, and their potential for creating significant weight savings in engineering applications. The inherent weakness of this construction is the presence of material and geometric discontinuities at ply drop region that induce premature interlaminar failure at interfaces between dropped and continuous plies. In the present work the finite element analysis of internally ply drop-off composite laminates is presented. The effect of different lay- ups is study. The ply drop-off ratio Th/L (where Th is stagger distance and L is ply drop of length) is taken as 1/20. The finite element formulation is carried out in the analysis section of the ANSYS software.
关键词：ply drop-off; ply ratio thickness ; lay-up; stress; ANSYS