航空材料学报2018，Vol.38Issue(2)：118-125,8.DOI:10.11868/j.issn.1005-5053.2016.000179
X-cor夹层结构的有限元模型
Finite Element Model of X-cor Sandwich Structure
摘要
Abstract
Referring to the mode of Z-pin pre-processing, three kinds of finite element method models including assembled, combined and separated model are introduced. Applicability, advantage and disadvantage of the models are presented, which provide the references for the designers to use finite element method. On the basis of Z-pin bridging law by pullout test and Z-pin pulled out from foam test, separated model of X-cor sandwich structure for finite element analysis is introduced. Double spring coupling elements are introduced to reveal microscopic mechanism of interaction between Z-pin, foam and face-sheets in separated model. The spring parallel to Z-pin interface simulates the relative slip and analyzes the adhesive stress of interface, the spring perpendicular to Z-pin interface simulates the transverse elastic supporting of foam to Z-pin buckling. The finite element simulation on mechanical behavior and interface failure of X-cor sandwich structure are realized.关键词
X-cor夹层结构/整体式模型/组合式模型/分离式模型/双弹簧联结单元Key words
X-cor sandwich structure/assembled model/combined model/separated model/double spring coupling elements分类
通用工业技术引用本文复制引用
单杭英,肖军,褚奇奕..X-cor夹层结构的有限元模型[J].航空材料学报,2018,38(2):118-125,8.基金项目
中央高校基本科研业务费专项资金(NS2015099) （NS2015099）
