Foam-Filled Double-Layer Woven Lattice Truss Sandwich Panels: Manufacturing, Testing and Composite Effects

IF 2.3 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Applied Composite Materials Pub Date : 2023-11-15 DOI:10.1007/s10443-023-10177-x

Wei Hu, Ben Wang, Bailu Luo, Wenyi Bao, Hualin Fan

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Abstract

Woven lattice truss sandwich panel (WLTSP) has excellent debonding resistance, but is limited to the weak core shear performance. To relax the limit of mono-layer thickness and improve the shear rigidity, foam-filled double-layered WLTSPs (FDWLTSPs) were designed and manufactured by vacuum infusion process (VIP), hot-pressing technology (HPT) and filling-foam technique. Flatwise compression and edgewise compression experiments were performed to reveal the composite effects of multi-layered and filling-foam techniques on the mechanical performances of WLTSP. The results show that the strength, stiffness, and energy absorption of FDWLTSPs are significantly improved. The flatwise compression strength of FDWLTSPs is 5.03 MPa, increased by 403%. The edgewise compression strengths of FDWLTSPs with warp-warp, weft-warp, and weft-weft core arrangements, are 21.97 MPa, 24.1 MPa, and 25.63 MPa, increased by 310%, 283%, and 165%, respectively. The failure patterns of coupling of core compression and shear in flatwise compression and those of buckling and face fracture in edgewise compression were revealed.

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泡沫填充双层编织格子桁架夹芯板:制造、测试及复合效果

织格桁架夹芯板具有优异的抗脱粘性能，但其核心剪切性能较弱。为放宽单层厚度限制，提高抗剪刚度，采用真空灌注工艺(VIP)、热压技术(HPT)和填充泡沫技术，设计并制造了泡沫填充双层WLTSPs (FDWLTSPs)。通过平面压缩和边缘压缩实验，揭示了多层和填充泡沫复合技术对WLTSP力学性能的影响。结果表明，fdwltsp的强度、刚度和吸能均有显著提高。fdwltsp的平面抗压强度为5.03 MPa，提高了403%。经-经、纬-经和纬-纬芯配置的fdwltsp的边向抗压强度分别为21.97 MPa、24.1 MPa和25.63 MPa，分别提高了310%、283%和165%。揭示了平面压缩时岩心压缩-剪切耦合破坏模式和边缘压缩时屈曲-面断裂破坏模式。

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来源期刊

Applied Composite Materials 工程技术-材料科学：复合

CiteScore

4.20

自引率

4.30%

发文量

审稿时长

1.6 months

期刊介绍： Applied Composite Materials is an international journal dedicated to the publication of original full-length papers, review articles and short communications of the highest quality that advance the development and application of engineering composite materials. Its articles identify problems that limit the performance and reliability of the composite material and composite part; and propose solutions that lead to innovation in design and the successful exploitation and commercialization of composite materials across the widest spectrum of engineering uses. The main focus is on the quantitative descriptions of material systems and processing routes. Coverage includes management of time-dependent changes in microscopic and macroscopic structure and its exploitation from the material''s conception through to its eventual obsolescence.