【摘要】 本文用概率断裂力学的方法研究了海洋平台管节点的疲劳强度。对7个T型管节点的疲劳寿命试验进行了计算。在处理原始数据方面,本文提出了对疲劳裂纹扩展数据进行统一处理的方法。此外,还对各参量对寿命的影响进行了分析,并对与计算有关的一些问题作了讨论。更多还原

【Abstract】 The paper deals with fatigue life of welded joints of offshore structures by using the method of probabilistic fracture mechanics. The unitary processing method has been proposed to deal with fatigue data of fatigue crack propagation tests. The fatigue life for seven T-type welded joints have been calculated. The influence of several parameters on fatigue life and some calculation problems are discussed.更多还原