Effect of temperature and geometrical parameters on mechanical properties of pin-loaded fiber metal laminate joints
Effect of temperature and geometrical parameters on mechanical properties of pin-loaded fiber metal laminate joints
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DOI：
10.1177/0021998316687029
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发表时间：
2017-01
影响因子：
2.9
通讯作者：
Shiming Zu;Zhengong Zhou;Yuan Zhao;Jipeng Zhang;Jia-zhen Zhang
中科院分区：
文献类型：
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作者：
Shiming Zu;Zhengong Zhou;Yuan Zhao;Jipeng Zhang;Jia-zhen Zhang
为了研究温度和几何参数对纤维-金属层合板钉压接头力学性能的影响，采用静态拉伸试验方法进行了试验研究。对不同宽径比（W/D= 2，3，4）和边长径比（E/D= 1，2，3，4）的节点进行了室温试验研究。结果表明，随着W/DorE/D比值的增大，极限破坏荷载增大。主要失效模式为关节面失效。当销孔位于更靠近试样边缘时，更容易引起剪切和净拉伸失效。同时，为了探讨温度对纤维金属层板接头承载性能的影响，在40 ~ 120℃的高温条件下，对3种典型的接头结构（W/D = 4，E/D= 4;W/D= 4，E/D= 1; W/D= 2，E/D= 4）进行了试验研究。试验结果表明，随着试验温度的升高，接头的破坏载荷逐渐减小。纤维金属层合板接头的失效模式主要受高试验温度的影响。本文的工作为纤维金属层合板接头的设计提供了依据。
To investigate the effect of temperature and geometrical parameters on the mechanical properties of pin-loaded fiber metal laminate joints, experiments were performed by means of static tensile tests. The joints of varied width-to-diameter ratios (W/D= 2, 3, 4) and edge distance-to-diameter ratios (E/D= 1, 2, 3, 4) were experimentally investigated at room temperature. It was found that ultimate failure load increased with the increase of the ratio ofW/DorE/D. The dominant failure mode was bearing failure. Shear-out and net-tension failures were more easily caused as the pin hole was located closer to the edge of the specimen. Also, to explore the effect of temperature on the bearing responses of fiber metal laminate joints, three typical joint configurations (W/D= 4,E/D= 4;W/D= 4,E/D= 1; andW/D= 2,E/D= 4) were tested at high temperature, which ranged from 40℃ to 120℃. The test results clearly show that failure loads of joint decrease with the increase of the test temperature. The failure modes of the fiber metal laminate joints were predominantly affected by high test temperatures. The present work provides supporting information for the design of the fiber metal laminate joints.