Verification and optimization of Modified-ASME failure probability model [Modified-ASME 失 效 概 率 模 型 的 验 证 与 优 化]

作者：Xu J.; Guan Y.; Zeng G.^*

来源：Journal of Radiation Research and Radiation Processing, 2021, 39(3): 030701.

DOI：10.11889/j.1000-3436.2021.rrj.39.030701

• Failure probability
• Finite element method
• Nuclear graphite
• Probabilistic method

The Modified-ASME model is mainly used for the failure assessment of ultra-fine particle nuclear graphite, but the model has not yet passed experimental verification. This article first uses ABAQUS software to establish a four-point stress experimental model to verify the Modified-ASME model. It is found that the error between the calculation result of the model and the experiment is more than 20%, which could not meet the requirement that the error in engineering design should be less than 18%. Therefore, the model should be optimized. This paper optimizes the Modified-ASME model based on the Brazilian disk experiment and the correction of Weibull parameters. The error between the optimized Modified-ASME model calculation results and the experiment is within 10%, which meets the design requirements. ? Fushe Yanjiu yu Fushe Gongyi Xuebao/Journal of Radiation Research and Radiation Processing 2021.

• 单位
  中国科学院大学