文献类型：期刊文献

中文题名：基于非弹性分析方法的核电高温结构完整性评价框架及应用

英文题名：Principle and application of structural integrity assessment of nuclear components at elevated temperature based on inelastic analysis routine

作者：高付海[1,2,3];宫建国[1,2];轩福贞[1,2]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237;[2]华东理工大学核电装备工程研究中心,上海200237;[3]中国原子能科学研究院,北京102413

年份：2022

卷号：39

期号：4

起止页码：33

中文期刊名：压力容器

外文期刊名：Pressure Vessel Technology

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：国家自然科学基金项目(52175139,51835003)。

语种：中文

中文关键词：高温结构;结构完整性;非弹性分析;本构模型

外文关键词：component at elevated temperature;structural integrity;inelastic analysis;constitutive model

摘要：第四代核电装备面临着较高服役温度、超长服役周期、复杂运行工况等突出问题,结构损伤模式趋于多样化、复杂化。尤其是在热应力突出条件下,传统基于弹性分析的高温结构强度分析方法保守性较大。而基于非弹性分析的高温结构强度评价方法,为解决上述问题提供了新的技术途径。阐述了高温结构完整性评价的基本原理,介绍了ASME规范体系下的非弹性分析方法及实际工程应用面临的主要问题;归纳了非弹性本构模型及结构强度评价所需的后处理软件问题;结合工程案例,开展了基于非弹性分析方法的高温结构完整性评价研究;最后,总结研究结论,对未来研究方向进行了展望。
The GenerationⅣnuclear equipment is faced with the predominant characteristics such as high operation temperature,ultra long service period and complex operating conditions.Especially,under the predominant condition of thermal stress,the conventional analysis method of structural strength at high temperature based elastic analysis is very conservative.Whereas the strength assessment method of component at high temperature based on the inelastic analysis routine provides a new technical approach for solving the above issues.In this work,the basic principle for structural integrity assessment was clarified,and the inelastic analysis method within the framework of the ASME code was introduced,with the main issues listed for engineering applications.Meanwhile,the inelastic constitutive equation and the software/program required for structural strength assessment were summarized;and study on structural integrity assessment of components at high temperature was conducted using the inelastic analysis routine in combination with engineering cases.Finally,main conclusions were summarized and the research interest in the future was prospected.