Bending properties of sandwich sheets with metallic face sheets and additively manufactured 3D CFRP lattice cores
Bending properties of sandwich sheets with metallic face sheets and additively manufactured 3D CFRP lattice cores
复制标题
具有金属面板和增材制造 3D CFRP 晶格芯的夹层板的弯曲性能
DOI：
10.1016/j.jmatprotec.2021.117437
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发表时间：
2022
影响因子：
6.3
通讯作者：
Yanagimoto Jun
中科院分区：
文献类型：
--
作者：
Zhang Jingwei;Ding Sheng;Yanagimoto Jun
为了改善金属基夹层板材的结构性能、弯曲性能和潜在功能，将三维晶格芯材夹在金属薄板之间。系统地研究了球壳、四面体桁架和四面体平板三种基本拓扑结构的三维打印碳纤维增强塑料(CFRP)格子芯夹层板材的弯曲性能。阐明了芯层拓扑结构、芯层相对密度、芯层高度、面层厚度对结构性能的影响。通过理论模型和试验测试，深入研究了夹层板弯曲过程中常见的破坏模式，如面屈曲、芯层剪切破坏等。在规定半径为60 mm时，相对密度为50%、高度为6 mm、面板厚度为0.5 mm的双层穹顶、八重桁架和板格芯的夹层板是可弯曲的。本研究在理论和实验验证的基础上，论证了三维点阵可弯曲夹层板的设计和制造的可行性。所设计的可弯曲夹层板可以在各种工程应用中取代传统的重型整体金属板，有望满足对轻质功能材料的高要求。
To improve structural performance, bendability and potential functionality of metal-based sandwich sheets, the 3D lattice cores were sandwiched between thin metallic face sheets. The bending properties of sandwich sheets with 3D printed carbon fiber reinforced plastic (CFRP) lattice cores originating from basic topologies of spherical shell, tetrahedral truss and tetrahedral plate were systematically investigated. The effects of core topologies, core relative densities, core heights, face sheet thicknesses on structural properties were clarified. The common failure modes during bending of sandwich sheets, such as face buckling and shear failure of core, were deeply investigated by theoretical models and experimental tests. At a prescribed radius of 60 mm, the sandwich sheets with the bilayered dome, octet truss and plate lattice cores of relative density of 50 %, height of 6 mm and face sheet thickness of 0.5 mm are bendable. This study demonstrates the feasibility of design and production of bendable sandwich sheets with 3D lattice cores based on the theoretical and experimental validations. The designed bendable sandwich sheets can be adopted to replace conventional heavy monolithic metal sheets in various engineering applications, which is anticipated to fulfill the high demand for lightweight functional materials.
板材成形中温度对金属/聚合物层压板成形行为的影响
DOI：
10.1115/1.2772329
发表时间：
2007
影响因子：
1.2
作者：
M. Weiss;M. Dingle;B. Rolfe;P. Hodgson
通讯作者：
P. Hodgson
影响因子：
6.3
作者：
Jingwei Zhang;T. Taylor;J. Yanagimoto
通讯作者：
Jingwei Zhang;T. Taylor;J. Yanagimoto
影响因子：
64.8
作者：
Berger, J. B.;Wadley, H. N. G.;Mcmeeking, R. M.
通讯作者：
Mcmeeking, R. M.