针对复合材料构件边角区域分层问题,提出了对分层区域分次打磨切除并重新粘接补片的修补方案。制备了复合材料层压板边角分层缺陷试样,对试样进行了无损探伤、拉伸和弯曲实验、显微检测,并对实验件的无损探伤结果、力学性能和显微结构进行分析。结果表明:修补后的试样无损检测合格,试样拉伸强度恢复率较好,试样弯曲强度恢复率完好。此方法为复合材料构件执行外场修补提供了一种快速有效的修补方法。并已在实际生产和外场排故中完成了初步的工程应用。
To solve the problem of corner delamination flaw of composite laminate components,proposed a repairing method that polished and cutted for several times,then re-bonding the patch.The sample of corner delamination flaw of composite laminate was prepared,the analysis of nondestructive testing,Mechanical properties,microscopic structure of the repaired sample were carried out.The result showed that,the nondestructive testing was qualified,tensile and the bending strength recovery rate of sample was better.In outfield troubleshooting,this method provided a quick and effective mean to repair composite components.And it had completed preliminary engineering application in actual production and outfield troubleshooting.
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