摘要
对复合材料损伤构件进行胶接修理,在MTS试验机上进行强度试验,并在5个位置安装应变片,记录修理构件能够承受的最大载荷以及加载过程中的应变变化。分析结果表明:胶接补片改变了原来的应变分布,增加了试验件的强度,试验件的破坏从应变较大处开始。最佳的修补参数为复合材料修理补片与母板纤维方向成0/90°,补片大小为损伤面积的2～3倍,补片厚度为损伤深度的0.6～1倍。
Strength of adhesive bonding repair composite material laminated with different path parameters were tested on MTS material test machine. Strains during the test were recorded using five strain foils bonded on different positions of the laminate. The result indicates that： 1 ） the patch changes the strain distribution and increases the strength of the laminates ; 2） the optimized repairing efficiency can be obtained when the ply-up angle of the patch is 0 or 90°, the size of the patch is 2 - 3 times of the damaged size and the thickness of the patch is 0.6 - 1 time of the damage deepness.
出处
《机械科学与技术》
CSCD
北大核心
2012年第12期2019-2022,共4页
Mechanical Science and Technology for Aerospace Engineering
关键词
复合材料
胶接修理
补片尺寸
braided composite
adhesive bonding repair
patch size
strain distribution
aircraft maintenace
