天津工业大学学报2025，Vol.44Issue(2)：8-14,22,8.DOI:10.3969/j.issn.1671-024x.2025.02.002
碳-玻璃纤维夹层泡沫缝合复合材料的弯曲性能
Bending properties of carbon-glass fiber sandwich foam stitching composites
摘要
Abstract
In order to solve the problem of delamination failure of sandwich foam composites under bending load,stitching technology was used to enhance the bending properties.The influence of sewing density and panel thickness on the bending performance of the composite material was studied experimentally,and the progressive damage of bending process was analyzed by finite element simulation.The results show that the bending performance of the carbon-glass fiber laminated foam stiching composite material is positively correlated with the sewing density and panel thickness.When the sewing density is 10 mm × 10 mm and the panel thickness is 5 layers,the sample has the best bending performance,with a bending strength of 73 MPa and a bending stiffness of 4.01 × 106 N·mm2.The bending failure morphology of the carbon-glass fiber laminated foam stiching composite material mainly shows the depression of the upper panel,the fracture of the lower panel,the compression deformation and shear failure of the foam,and the pull-out failure of the resin column of the sewing thread.关键词
夹层泡沫复合材料/缝合/弯曲性能/破坏形貌/有限元模拟Key words
sandwich foam composites/stitching/bending properties/morphological damage/finite element simulation引用本文复制引用
毛丽贺,朱佳琦,陈利,焦亚男,鲁吉文,孙荣庆..碳-玻璃纤维夹层泡沫缝合复合材料的弯曲性能[J].天津工业大学学报,2025,44(2):8-14,22,8.基金项目
天津市多元重点项目(22JCZDJC00940) （22JCZDJC00940）
