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高学敏,等:基于ABAQUS软件的螺栓连接疲劳行为及寿命预测









































                                                图 9  多螺栓搭接结构被劳损伤演变过程
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              频疲劳载荷(100 Hz)会使材料在较短时间内经历
                                                                     analysis  of  threaded  fastener  loosening  due  to  dynamic
              大量应力循环,加速疲劳损伤累积,显著缩短材料                                 shear load[J].Engineering Failure Analysis,2002,9(4):
              的疲劳寿命。因此,在设计中应避免高频载荷条                                  383-402.
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              微动磨损减少,从而延长了螺栓的疲劳寿命。                                [6]  MAGGI  Y  I,GONÇALVES  R  M,LEON  R  T,
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              疲劳载荷作用下,裂纹逐渐扩展,最终导致螺栓发生
                                                                     contact between rough surfaces on the dynamic responses
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