The formulae for calculating SIF and fatigue life of surface crack at weldtoe of the high-strength steel under the combination stresses were given out.
给出了高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
2
The formulae for calculating SIF and fatigue life of surface crack at weldtoe of the high-strength steel under the combination stresses have been presented.
给出高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
3
It's a new method to increase fatigue strength of welded joints and structure by peening toe of weld with ultrasonic peening equipment.