通过利用超声C扫检查内部缺陷并测试力学性能的方法,对比研究碳纤维机织物CF3031与J-352结构胶配比工艺组合,确定44％含胶量为优选工艺组合。然后分别采用复合材料湿法浸润胶接、预制止裂孔、机械连接三种修理方法对10mm和4mm两种规格含裂纹铝板实施修理,对比不同修复方法的疲劳性能。针对10mm含裂纹铝板,证明打止裂孔加复合材料湿法浸润胶接方法可以大大提升修理效果。针对4mm含裂纹铝板,对比胶接修理与机械连接修理效果,证明针对较薄铝板,采用复合材料湿法浸润胶接方法具有较好的修理效果。
Through using ultrasonic C scan and testing the mechanical property to confirm the structural adhesive technology combination of woven fabric CF3031 and J-352.The fatigue performance of Al plates with cracks of 10mm and 4mm were compared by using composite wet repair,making stop-hole and mechanical joints repair respectively.For the 10mm Al plate with crack,it was proved that the repair effect can be greatly improved by drilling the crack hole and composite prepreg bonding.For 4mm Al plate with crack,compared with mechanical connection repair effect,it was proved that for the thinner Al plate,the wet-bonding method with composite material had a better repair effect.
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基金资助
芜湖市科技计划项目(2018pt01)
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