摘要
采用四点弯加载方式研究含损伤的边缘封闭蜂窝夹层结构修理后的弯曲性能,同时分析损伤直径、损伤类型和修理设备对修理板弯曲性能的影响。结果表明:所有修理板的抗弯强度恢复率基本处于90%以上;热压罐固化比热补仪固化效果稍好;胶接质量好的前提下,损伤大小对修理效果没有影响,然而损伤越严重,对胶接质量的要求就越高;修理后结构中央的抗弯强度恢复率比结构边缘损伤的高。
The flexural behavior of the repaired honeycomb sandwich structures with closed edgewise, was investigated by four-point bending test. The influence of damage type, damage size and repair equipment on bending performance of the repaired plate was analyzed. The results show that the strength recovery of all the repaired plate is more than 90%. The effect of autoclave is a little better than the effect of hot honder. The bending strength recovery with different damage sizes is almost the same with each other when the quality of bonding is good. But the large damage size need better bond- ing quality. The bending strength recovery of repaired honeycomb structures on the flatwise is larger than that on the closed edgewise.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2013年第12期27-31,36,共6页
Journal of Materials Engineering
基金
中国商飞关键技术攻关项目支持(SAMC12-JS-13-053)
关键词
蜂窝夹层结构
挖补修理
抗弯强度
破坏模式
强度恢复率
honeycomb sandwich structure
flush repair
flexural strength
failure mode
recovery of failure strength
