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bo lang zai he yin qi chuan ti gou jian pi lao de shou ming gu ji
Author(s): 
Pages: 58-68
Year: Issue:  2
Journal: Wuhan Shipbuilding

Keyword:  波浪载荷船体构件疲劳寿命疲劳裂纹扩展速率疲劳分析寿命估计断裂力学应变疲劳焊接裂纹发生;
Abstract: 本文研究了焊接船体损伤中大量出现的波浪载荷疲劳裂纹扩展的寿命问题。文中用断裂力学手段,讨论了应用计算波浪疲劳寿命方法的适用范围和存在问题,并对波浪载荷下船体构件的疲劳断口特征及材料、焊接等缺陷对疲劳裂纹发生的影响作了一些分析。文中最后结合实例强调了船体构件损伤分析的重要意义,以及疲劳寿命估计在损伤分析中的实际价值,并希望在这方面能够加强我国自己的工作。
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