In this study, 11 kinds of composite material were prepared, and the compression behavior of a bi-directional corrugated lattice sandwich structure prepared using jute fiber and epoxy resin was explored. The factors affecting the mechanical behavior of single and double-layer structures were studied separately. The results shows that the fiber angle, length-to-diameter ratio of the struts, and the type of fiber cloth have the most significant influence on the mechanical behavior of the single-layer lattice structure when preparing the core layer. When the fiber angle of the core layer jute/epoxy prepreg is (90/90) the compressive strength and Young’s modulus are 83.3% and 60.0% higher than the fiber angle of (45/45). The configuration of the core and the presence of the intermediate support plate of the double-layer structure have a large influence on the compression performance of the two-layer structure. After the configuration was optimized, the compressive strength and Young’s modulus were increased by 40.0% and 28.9%, respectively. The presence of the intermediate support plate increases the compressive strength, and Young’s modulus of the double-layer structure by 75.0% and 26.6%, respectively. The experimental failure is dominated by the buckling, fracture, and delamination of the core struts.

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compressive strength compression intermediate support plate buckling fracture and delamination of fiber cloth bidirectional corrugated lattice sandwich structure young8217s modulus mechanical fiber angle lengthtodiameter ratio core layer epoxy resin

Shuguang Li,Yanxia Feng,Mengyuan Wang,Yingcheng Hu,.Mechanical Behavior of Natural Fiber-Based Bi-Directional Corrugated Lattice Sandwich Structure. 11 (12),.

Shuguang Li,Yanxia Feng,Mengyuan Wang,Yingcheng Hu,"Mechanical Behavior of Natural Fiber-Based Bi-Directional Corrugated Lattice Sandwich Structure" 11

Shuguang Li,Yanxia Feng,Mengyuan Wang,Yingcheng Hu,"Mechanical Behavior of Natural Fiber-Based Bi-Directional Corrugated Lattice Sandwich Structure"