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The effect of the lap length on the tensile properties is analyzed with respect to the stress distribution and the failure mode. It is shown that: when the lap length changes from 5mm to 45mm, the minimum shear stress gradually decreases; when the lap length is greater than 20mm, the effect of the lap length on the stress distribution is decreased; the failure load increases gradually with the lap length; the increase rate is reduced when the lap length is greater than 20mm; the failure mode of a single lap joint is to start from the edge of the adhesive -composite interface, and then the adhesive damage. The lap length affects the damage level., authors=GUO Xia1, GUAN Zhidong1, LIU Sui1, KONG Jiaoyue2, YAN Dongxiu2, QIAO Liuping2, authorsList=GUO Xia;GUAN Zhidong;LIU Sui;KONG Jiaoyue;YAN Dongxiu;QIAO Liuping, authorCompany=1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;2. 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搭接长度对复合材料单搭接胶接接头的影响
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科技导报 |专题论文 2013 , 31 (7) : 37 -41
搭接长度对复合材料单搭接胶接接头的影响
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郭霞1, 关志东1, 刘遂1, 孔娇月2, 晏冬秀2, 乔柳平2
作者信息
    1. 北京航空航天大学航空科学与工程学院,北京 100191;2. 中国商用飞机有限责任公司上海飞机制造有限公司,上海 200436
通讯作者:
关志东,教授,研究方向为复合材料设计,电子信箱:zdguan@buaa.edu.cn
Effect of Lap Length on the Adhesive-bonded Single-lap Composite Joints
  • GUO Xia1, GUAN Zhidong1, LIU Sui1, KONG Jiaoyue2, YAN Dongxiu2, QIAO Liuping2
  • Affiliations
      1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;2. Shanghai Aircraft Manufacturing CO., Ltd., Commercial Aircraft Corporation of China, Ltd., Shanghai 200436, China
    出版时间: 2013-03-08 doi: 10.3981/j.issn.1000-7857.2013.07.005
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    针对复合材料单搭接接头的拉伸性能进行有限元建模,分析搭接长度对单搭接接头的应力分布和破坏模式的影响.结果表明:当搭接长度在5~45mm变化时,最小剪切应力逐渐减小,当搭接长度大于20mm时,搭接长度对应力分布的影响减少;破坏载荷逐渐增大,当搭接长度大于20mm时,搭接长度对破坏载荷的影响减少;单搭接接头的破坏模式为胶层-复合材料界面的边缘发生部分损伤,导致胶层损伤,搭接长度的变化影响单搭接接头的损伤严重程度.
    复合材料单搭接胶接接头  /  搭接长度  /  破坏模式
    The tensile performance of the adhesive-bonded single-lap composite joints is studied by the finite element modeling. The effect of the lap length on the tensile properties is analyzed with respect to the stress distribution and the failure mode. It is shown that: when the lap length changes from 5mm to 45mm, the minimum shear stress gradually decreases; when the lap length is greater than 20mm, the effect of the lap length on the stress distribution is decreased; the failure load increases gradually with the lap length; the increase rate is reduced when the lap length is greater than 20mm; the failure mode of a single lap joint is to start from the edge of the adhesive -composite interface, and then the adhesive damage. The lap length affects the damage level.
    adhesive-bonded single-lap composite joints  /  lap length  /  damage mode
    郭霞;关志东;刘遂;孔娇月;晏冬秀;乔柳平. 搭接长度对复合材料单搭接胶接接头的影响. 科技导报, 2013 , 31 (7) : 37 -41 . DOI: 10.3981/j.issn.1000-7857.2013.07.005
    GUO Xia;GUAN Zhidong;LIU Sui;KONG Jiaoyue;YAN Dongxiu;QIAO Liuping. Effect of Lap Length on the Adhesive-bonded Single-lap Composite Joints[J]. Science & Technology Review, 2013 , 31 (7) : 37 -41 . DOI: 10.3981/j.issn.1000-7857.2013.07.005

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    doi: 10.3981/j.issn.1000-7857.2013.07.005
    • 接收时间:2012-12-19
    • 首发时间:2013-03-08
    • 出版时间:2013-03-08
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    • 收稿日期:2012-12-19
    • 修回日期:2013-01-08
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    关志东,教授,研究方向为复合材料设计,电子信箱:zdguan@buaa.edu.cn
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    2种不同金属材料的力学参数

    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)

    Genus
    种数
    Number of
    species
    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
    关闭全屏