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首页> 外文会议>Third international conference on composites in infrastructure (ICCI'02) >PIN-BEARING BEHAVIOR OF NOTCHED PULTRUDED PLATE
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PIN-BEARING BEHAVIOR OF NOTCHED PULTRUDED PLATE

机译：缺口拉拔板的销轴承行为

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摘要

Presented are the results of physical tests and a finite element analysis on the pin-bearing behavior ofrnnotched pultruded plate. In testing a steel bolt of diameter 9.8 mm and notch clearances of 0.2 and 1.2rnmm were chosen. Test specimens were cut from a 6.35 mm (1/4 inch) EXTRENa 625 flat sheet withrnmaterial orientations of 0o, 45o and 90o. Using a purpose-built test rig a pin-bearing load was appliedrnuntil ultimate failure occurred. ABAQUS? finite element software was used to model therncontact/friction problem with a 10 mm pin and two notch clearances of 0 and 1 mm. It was found thatrnthe presence of notch clearance and the friction/contact phenomenon was successfully simulated. Thernmagnitude of the maximum minimum principal strain was found to increase with notch clearance. Therernwas a reasonable comparison between simulation and experimental strains, especially when the notchrnclearance was present. The ABAQUS? results showed that the maximum compressive stress may notrnbe located on the assumed bearing failure plane thereby bringing doubt on the appropriateness ofrnexisting bolted joint design procedures.
机译：给出了物理测试的结果以及对缺口拉挤板的销轴承行为的有限元分析。在测试中，选择了直径为9.8 mm的钢制螺栓，缺口间隙为0.2和1.2rnmm。从材料方向为0o，45o和90o的6.35毫米（1/4英寸）EXTRENa 625平板切下测试样品。使用专用的试验台，施加了销轴承载荷，直到发生最终故障。 ABAQUS？有限元软件用于模拟接触/摩擦问题，销钉直径为10毫米，两个缺口间隙分别为0和1毫米。结果发现，已成功地模拟了切口间隙的存在和摩擦/接触现象。发现最大最小主应变的幅度随切口间隙的增加而增加。在模拟应变和实验应变之间进行了合理的比较，尤其是当存在缺口时。 ABAQUS？结果表明，最大压缩应力可能不会位于假定的轴承失效平面上，从而使人们对现有螺栓连接设计程序的适当性产生怀疑。

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