基于Ansys软件参数化专用模块的RPV 辐照脆化断裂评估  

Fracture evaluation of the embrittled RPV based on the secondary development of Ansys software

作　　者：陈明亚[1,2] 耿昌金 王威强 高红波[1] 彭群家 师金华 CHEN Mingya;GENG Changjin;WANG Weiqiang;GAO Hongbo;PENG Qunjia;SHI Jinhua(Suzhou Nuclear Power Research Institute,Suzhou 215004,China;School of Mechanical Engineering,Shandong University,Jinan 250061,China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004 [2]山东大学机械工程学院,济南250061

出　　处：《压力容器》2022年第5期53-59,共7页Pressure Vessel Technology

基　　金：国家重点研发计划项目“核电站重要设备部件先进智能老化监检测技术开发与验证”(2020YFB1901500)。

摘　　要：反应堆压力容器(RPV)是核安全一级部件,在设计阶段需要进行含假想裂纹的断裂力学安全性能评估,并且在运行过程中若发生超出设计运行压力-温度限值曲线(P-T曲线)时,也需要进行含假想裂纹的断裂力学安全性能评估。基于Ansys软件自身的APDL语言开发了RPV辐照脆化评估专用参数化(插件)模块,专用模块集成了模型基本信息输入、温度场计算、应力场计算、断裂参量计算、依据RCC-M规范进行安全评估等方面的分析能力。专用模块规范了计算过程,避免了人因干扰,可满足工程上的快速、准确的安全评估要求。验证结果表明,参数化专用模块的分析结果与某核电厂原设计报告中相关瞬态的分析结果偏差均可控制在3%左右。The reactor pressure vessel(RPV) is a code Class 1 component of nuclear safety.In the design stage, it is necessary to evaluate the fracture safety of the RPV with hypothetical cracks.In the stage of operation, it is also necessary to evaluate the fracture safety if the operation parameters exceed the design pressure-temperature limit curve(P-T curve).Based on the APDL language of Ansys software, a special parameterized(plug-in) module for irradiation embrittlement assessment of RPV was developed.The special plug-in module integrates the analysis of basic information input, temperature field calculation, stress field calculation, fracture parameter calculation and safety assessment according to the RCC-M Code.The special plug-in module standardizes the calculation process, avoids human interference, and can meet the requirements of rapid and accurate safety assessment in the engineering.The verification results show that the errors between the analysis results of the special plug-in module and the results in the original design report of a nuclear power plant for the design transient are less than 3%.

关 键 词：反应堆压力容器 Ansys 辐照脆化 矩阵运算 

分 类 号：TH49[机械工程—机械制造及自动化] TL351.6[核科学技术—核技术及应用] O241.82[理学—计算数学]