Transactions of Materials and Heat Treatment

Title：Experimental study on bolts connection strength between composite and aluminum sheets

Authors： Huang Zhichao Lu Nengzhi Lv Shiliang Xie Chunhui Huang Yibin

Unit： East China Jiaotong University Shangrao Normal University

KeyWords： composite aluminum sheets bolt-connection tightening torque connection strength

ClassificationCode：TG115.5+2

year,vol(issue):pagenumber：2014,39(12):115-119

Abstract：

The static tensile-strength experiments of bolt-connection were conducted between composite sheets and aluminum sheets, and the bolt-connection strength characteristics were analyzed based on different apertures, tightening torque and with or without the washer. The bolt-connection between glass fiber reinforced polymer and industrial pure Aluminum 1050A was studied by the experiment. The experimental results show that when the load reaches 90% of the maximum load, the fiber is broken, resin is cracked and plastic deformation is in aluminum sheet. The composite sheet fractures when it is stretched continually. The reasonable tightening torque can improve 20%-25% of damage load, which is higher than that in the bolt-connection of simple composites sheets. When overlarge tightening torque is provided, the damage will happen in advance. The existence of washer not only improves the maximum load, but also eases the crush damage coming from overlarge tightening torque. The apertures have great influence on the forms of fracture failure but have little effect on the maximum load.

Funds：

国家自然科学基金资助项目（51265012）；江西省赣鄱英才555工程领军人才培养计划项目(赣才字\[2012\]1号)；上饶市“信江英才866工程”高端人才柔性特聘计划项目

黄志超（1971-），男，博士，教授，博士生导师

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