介绍了一种自行设计的夏比冲击试验V形缺口试样送样卡具。
This article introduced a kind of self-designed V shape sample clamp for Sharpy impact test machine.
通过不同温度条件下不同厚度、不同缺口取向含V形缺口试样进行3点弯曲试验研究，发现X70管线钢具有严重的各向异性现象，其在平行钢板表面方向和沿钢板厚度方向力学性能差异较大。
The effects of thickness and notch orientation on the toughness of X70 pipeline steel samples with V notch were investigated experimentally by use of the 3-point bending test at different temperature.
缺口试样在缺口的高应力集中效应下，加快疲劳裂纹形核过程。
The high stress concentration effect of notch can accelerate the process of fatigue crack nucleation in the notch specimen.
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