摘要
新的主曲线方法对反应堆压力容器完整性的评估在美国被称为革命性的改进。本文从保证核电安全的反应堆运行限值曲线出发,说明主曲线的由来、根据和标准;从对微观组织很敏感的脆性断裂特点,阐述主曲线的理论和它的统计规律性及其Weibull分布统计模型和实验方法;从断裂韧性数据库对该模型的拟合式,理解主曲线的含义、优点和应用以及主曲线的重要性和它与核电安全的关系。
The new Master Curve Method is called as a revolutionary advance to the assessment of reactor pressure vessel integrity in USA. This paper explains the origin, basis and standard of the Master Curve from the reactor pressure-temperature limit curve which assures the safety of nuclear power plant. According to the characteristics of brittle fracture which is greatly susceptible to the microstructure, the theory and the test method of the Master Curve as well as its statistical law which can be modeled using Weibull distribution are described in this paper. The meaning, advantage, application and importance of the Master Curve as well as the relation between the Master Curve and nuclear power safety are understood from the fitting formula for the fracture toughness database by Weibull distribution model.
出处
《核安全》
2011年第2期7-13,29,共8页
Nuclear Safety
