金属结构损伤复合材料微波修复的实验研究_罗文琳.pdfVIP

37 6 V ol . 37 N o . 6 2005 12 Journal of N anjing U niversit y of A ero nautics A st ronautics Dec. 2005 罗文琳 许陆文 徐鹿鳞 ( 2 10016) : 研究一种利用微波修复金属结构损伤的新技术 阐明了微波修复机理 探讨了界面形成 快速固化理论。 复合材料微波修复通过在修复区注入微波吸收剂提高导电磁率来吸收微波辐射 并将微波能转换为热能 利用 特殊设计的微波施加器发射微波可以使热量直接加在修复区而不加热整 个结构。本文还提供大量的实验数据 表明微波修复试件的强度高于传统方法修复的试件 微波修复技术适合于现役飞行器在各种环境下的外场快速 修复。 : 复合材料; 修复; 微波; 金属结构; 损伤 : T B332: A : 1005 -2615( 2005) 06-0736-05 Microwave Repair of Metal Structure with Damages f or Composite Materials - - - L UO W en lin X U L u w en X U L u lin ( Co lleg e of A er ospa ce Eng ineering N anjing U niv ersit y o f Aer onautics A str onautics N anj ing 2100 16 China) Abstract: U sing t he m icrow ave po w er for rep airing t he met al st ru ct ure w ith damages is stu died. M icrow ave r ep air mechanisms of com posite mat erial s are int roduced and t he t heory about the int erfacial joint f orm ing and t he r ap id curing is discu s sed. T he micr ow av e rep air of co mposit e mat erials is perf orm ed by putt ing t he microw ave dop e int o t he repair region t o impr ove electro magnetic condu ct ivit y . It absorb s t he micro w av e radiat ion and convert s t he micro w av e pow er int o t he heat energ y . By u sing t he desig ned appl icato r t he microw ave pow er m akes t he heat direct ly t o t he r ep air reg ion w it hout heating t he ent ire st ru ct ure. Ex periment al dat a sho w th at t he ult im ate str engt h f or t he m icrow ave cured sp ecim en is slig ht ly higher t han t h at of t he co nventio nally cured