基于ADINA自动进行应力分类的核一级部件校核方法

Automatic Stress Classification Method for Verification of Nuclear Class 1 Components Based on ADINA

摘要: 根据ASME规范对核级设备强度校核的要求，需要对计算出的应力分布根据具体情况进行应力分类。本文先对核一级设备的相关要求进行了介绍。ADINA软件可以针对应力计算结果沿着指定的路径进行分类。本文介绍了该软件应力分类的数学和物理依据，最后用一个实例，计算了结构的应力分布，并根据软件的应力分类，对结构强度进行了校核。证明ADINA软件可以完成自动应力分类，并提供相关分析结果用于强度校核计算。

Abstract: According to the requirements of the ASME specification for the strength verification of nuclear-grade equipment, it is necessary to classify the calculated stress distribution according to specific circumstances. This paper first introduces the relevant requirements for nuclear Class 1 facilities. The ADINA software can classify the stress calculation results along a specified path. This paper introduces the mathematical and physical basis for stress classification in the software, and finally it calculates the stress distribution of an example structure and verifies the structural strength according to the software’s stress classification. It proves that the ADINA software can complete stress classification automatically and provide relevant analysis results for strength verification.