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反应堆压力容器概率断裂力学评价方法研究

World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering(2017)

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Abstract
反应堆压力容器(RPV)在承压热冲击(PTS)载荷下结构完整性评定中由于很多参数的假设是确定的,分析结果偏保守.实际上许多参数(如裂纹尺寸、中子辐照等)具有统计特性,因此需要采用概率论的方法对RPV进行断裂力学分析.文中首先介绍了RPV受PTS作用时的结构完整性评价方法,其次介绍了RPV受PTS作用下采用概率断裂力学分析RPV可靠性的方法.最后实例中,利用概率断裂力学分析方法对RPV进行了分析评价,并初步讨论了对RPV进行概率断裂力学评定遇到的问题.
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Key words
reactor pressure vessel,fracture,shock
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