Study on the Flexural Behavior of Stitched Foam-core Sandwich Panels
LAI Jiamei1, RUAN Jinqi1, WANG Sen1, HUANG Zhichao2
1 School of Mechanical and Electric Engineering, Nanchang University, Nanchang 330031, China 2 Key Laboratory for Conveyance and Equipment of the Ministry of Education, East China Jiaotong University, Nanchang 330031, China
Abstract: The paper aims at predicting the flexural behavior of through-thickness stitched sandwich panels composed of foam core and glass fiber face sheets. A dynamics finite element model was established for the stitched foam core sandwich composite laminate under bending load.We find that the maximum flexural load of the stitched foam sandwich panels increased by about 80% and the flexural deflection increased by about 30%, which indicates that the introduction of stitched resin columns can effectively improve the flexural behavior of the stitched foam sandwich panels, and the experimental data obtained from the simulation have controlled errors within 10% compared to experiment datas.And the output of HSNFCCRT and HSNMTCRT proves that the addition of stitched resin columns effectively reduces the interlayer damage inside the fiber pa-nels, indicating that its in-plane performance has been significantly improved.
赖家美, 阮金琦, 王森, 黄志超. 缝合泡沫复合材料弯曲性能研究[J]. 材料导报, 2020, 34(18): 18165-18170.
LAI Jiamei, RUAN Jinqi, WANG Sen, HUANG Zhichao. Study on the Flexural Behavior of Stitched Foam-core Sandwich Panels. Materials Reports, 2020, 34(18): 18165-18170.
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