基于弹性应力分析的核1级部件安定性评价

Shakedown Evaluation of Nuclear Class 1 Components by Means of Elastic Stress Analysis

总结基于ASME NB规范和弹性应力分析的核1级部件的安定性评价要点,明确规范条文的使用顺序和注意事项,提供判断一次加二次应力强度范围内是否包含机械应力成分的工程化方法,对应力分析过程中的加载和结果保存提出具体要求,为核1级部件的安定性评价提供清晰的脉络和适合数值模拟结果的处理方法。

The paper explains the key points to evaluate the shakedown of nuclear class 1 components by means of elastic stress analysis in accordance with ASME NB code,and how to use the code items and what should be taken into consideration,and proposes an engineering method to determine whether the primary plus secondary stress intensity contains mechanical stress components,and puts forward specific requirement on lading and result saving during stress analysis.So,the shakedown of nuclear class 1 components could be evaluated in a clear way and the results of numerical analysis could be processed with proper methods.