摘要
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.
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