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为了监测秦山300MW核电厂反应堆压力容器材料受中子辐照造成的材质性能变化,确保核电厂反应堆的安全运行,根据有关标准规定,在反应堆内设置辐照监督管,管内放入随堆运行的辐照监督试样。因监督管内径的限制,试样尺寸不能太大。我们研制了一种10×14×45mm的“W”拉伸型J积分小试样,并导出了这种试样的J积分表
In order to monitor the material properties of reactor pressure vessel materials of Qinshan 300MW nuclear power plant due to neutron irradiation and ensure the safe operation of nuclear power plant reactors, according to relevant standards, an irradiation supervisory control pipe is set in the reactor, Radiation supervision samples. Due to the restriction of the inner diameter of the supervision pipe, the sample size can not be too large. We developed a 10 × 14 × 45mm “W” stretched J-integral small sample and derived this sample J-score table