复合材料胶接修理层合板拉伸性能及影响参数

发布时间：2018-01-14 07:16

本文关键词：复合材料胶接修理层合板拉伸性能及影响参数　出处：《材料工程》2017年10期 　论文类型：期刊论文

【摘要】：胶接修理是效率较高、应用较广的复合材料结构修补技术。对采用不同参数进行挖补和贴补修理的复合材料层合板的拉伸性能进行实验研究。结果表明:挖补修理实验件的强度恢复率约为66%~91%,贴补修理实验件的强度恢复率约为44%~61%。在挖补修理实验件中,减小挖补斜度、采用双面挖补、使用热压罐固化,在贴补修理实验件中,采用双面贴补、增大补片尺寸,均可得到更高的强度恢复率。在实验基础上建立的有限元模型,能够有效预测实验件的失效载荷、破坏模式,并可分析实验件的应力分布和渐进损伤过程,为设计修理方案提供参考。
[Abstract]:Glue repair is more efficient. The tensile properties of composite laminates repaired with different parameters are studied by experiments. The results show that: (1) the tensile properties of composite laminates with different parameters are studied. The recovery rate of strength is about 66%. The strength recovery rate of the patch repair experimental piece is about 44 / 61.In the mending and repairing experiment, the slope of the excavating and repairing is reduced, the double side mending is used, the hot pressing tank is solidified, and in the mending and repairing experiment piece. A higher strength recovery rate can be obtained by using double side patch and increasing the size of the patch. The finite element model established on the basis of experiments can effectively predict the failure load and failure mode of the test piece. The stress distribution and progressive damage process of the specimen can be analyzed, which can be used as a reference for the design of repair scheme.
【作者单位】：北京航空航天大学航空科学与工程学院;中国商用飞机有限责任公司北京民用飞机技术研究中心;
【分类号】：TB33
【正文快照】： 2中国商用飞机有限责任公司北京民用飞机技术研究中心,北京102211)NIE Heng-chang1,XU Ji-feng2,GUAN Zhi-dong1,LI Zeng-shan1,WANG Xin1(1School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China;2Beijing Aeronautical ScienceTechnology

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