A fatigue evaluation method based on a simplified calculation model of stress distribution in elbow plate area was proposed by selecting the joint of double bottom transition zone of a large bulk carrier as the research object.The stress distribution in hot spots of different elbow types was theo-retically deduced,and a scaled model test was designed.The effectiveness of the simplified calculation model was verified by comprehensive test and finite element analysis.D curve was used to evaluate the fatigue of the joint model.Compared with the results of high cycle fatigue test,it is proved that the model is effective in fatigue evaluation of double bottom joints of hull.
关键词
典型节点/肘板/热点应力/高周疲劳试验/疲劳强度评估/简化计算模型
Key words
typical joints/brackets/hot spot stress/high-cycle fatigue test/fatigue assessment/sim-plified computational model
维普
万方数据