Acoustic emission characteristics changed by notch effect.

缺口效应引起了声发射特性的变化。

Besides, the fatigue damage for both the boiler steam drum and the notch specimen under varied amplitude low cycles is investigated with the effect of average stress taken into account.

同时还研究了变幅低周疲劳下缺口试件和锅炉汽包的损伤，并考虑了平均应力的影响。

Using 945 steel and 921a steel, this article studies the effect of weld profile and size on the cracking behavior of a central notch in a three-notch specimen for an explosion bulge test.

选用水面舰艇用945钢和潜艇用921a钢，研究了不同焊缝外形尺寸对爆炸试验中三缺口试样的中央缺口开裂行为的影响。

The effect of specimen type, thickness, dimension ratio, and notch sharpness on fracture toughness of a carbon rail steel was examined.

研究了试样类型、试样厚度、比例试样尺寸及切口尖度等因素对普碳轨钢断裂韧性的影响。

The effect of tiny amount of Titamium on the notch toughness of low carbon boron steel was investigated.

研究了微量钛对低碳硼钢冲击韧性的影响。