对于海洋工程结构物局部构件的管节点来说,影响其疲劳强度的主要因素是应力集中系数(SCF)和热点应力(hot spot stress)的大小。应力集中系数是节点处最大应力与远离节点的撑管处名义应力之诧,若应力集中系数降低18%,则疲劳寿命可以延长一倍。
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3) Based on fatigue accumulating damage concept of hot spot stress and notch stress S-N curves, this paper discuss the fatigue strength and life of naval block-assembly joint with two different butt-welding distribution.
3、通过应用热点应力和切口应力的S-N曲线,在疲劳累积损伤理论的基础上,对某舰船的总段在两种不同对接焊缝布置下,进行了疲劳强度和疲劳寿命的比较计算分析。
参考来源 - 纵骨与外板同一截面对接结构有限元数值分析Fatigue strength of the forementioned details is calculated and analysed further by means of hotspot stress method combined with nominal stress method.
本文对某船体纵向焊接构件建立了有限元模型并进行了分析;采用热点应力分析方法,结合名义应力法,对上述节点处的疲劳强度进行了进一步的计算和分析。
参考来源 - 结构疲劳裂纹产生与扩展的计算模拟·2,447,543篇论文数据,部分数据来源于NoteExpress
计算舱口角热点应力范围和热点疲劳寿命。
The stress ranges and the fatigue lives of hot spots on hatch corners are calculated.
本文研究了焊接结构疲劳强度的热点应力评估方法。
In this paper, the hot spot stress evaluation method is studied for evaluating the fatigue strength of welded structure.
指出热点应力法是当今焊接疲劳寿命预测的最热门方法。
Hot spot stress analysis is the most popular method in predicting fatigue life of welded structures.
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