复合材料科学与工程Issue(4)：63-75,13.DOI:10.19936/j.cnki.2096-8000.20240428.009
缝合增强PRSEUS构件低速冲击性能研究
Research of the low-velocity impact performance of stitch-reinforced PRSEUS components
摘要
Abstract
As a typical structural unit for wing-fuselage fusion layout,the PRSEUS structure is subjected to complex loading conditions.The use of stitching technology to integrate the reinforced structure with the skin can im-prove the load transfer capability of the fuselage,improve the overall consistency of the PRSEUS structure,and give full play to the loading efficiency of the PRSEUS structure.By preparing stitched PRSEUS components under exist-ing conditions and carrying out experimental studies of low velocity impact,it was found that the increase of either stitch density or stitch fineness can improve the impact resistance of the specimens,and the impact resistance im-provement brought by the increase in stitch fineness was relatively small compared to the increase in stitch density.The impact resistance performance of PRSEUS structure is more sensitive to the stitching density.The results of fi-nite element analysis showed that the interlayer properties of the stitched specimens were significantly improved and the damage area was reduced,which proved that stitching can effectively improve the impact resistance of PRSEUS structures.关键词
缝合/复合材料/PRSEUS/低速冲击性能/有限元模拟Key words
stitching/composite materials/PRSEUS/low-speed impact performance/finite element simulation分类
通用工业技术引用本文复制引用
田潇,文立伟,邓朱海..缝合增强PRSEUS构件低速冲击性能研究[J].复合材料科学与工程,2024,(4):63-75,13.基金项目
国家基础科研项目(50922020402) （50922020402）
