文章基本信息

标题：Buckling Analysis of Composite Hexagonal Lattice Cylindrical Shell using Smeared Stiffener Model
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作者：M. Buragohain ; R. Velmurugan
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2009
卷号：59
期号：3
页码：230-238
DOI：10.14429/dsj.59.1516
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Hexagonal lattice pattern formed by helical and circumferential ribs is the most common among different possible lattice patterns. An energy-based smeared stiffener model (SSM) is developed to obtain equivalent stiffness coefficients of a composite lattice cylindrical shell with such hexagonal lattice patterns. Using the equivalent stiffness coefficients, Ritz buckling analysis was carried out. Extensive finite element modelling covering different representative sizes have been carried out. SSM is validated by comparing the estimated buckling loads. Variation of material properties of rib unidirectional composites from those of normal unidirectional composites is accounted for in the energy formulations. Defence Science Journal, 2009, 59(3), pp.230-238 , DOI:http://dx.doi.org/10.14429/dsj.59.1516
关键词：Buckling analysis, smeared stiffener model, SSM, lattice patterns, Ritz buckling analysis