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首页> 外文会议>ASME Pressure Vessels and Piping Conference >DEVELOPMENT OF 2012 EDITION OF JSME CODE FOR DESIGN AND CONSTRUCTION OF FAST REACTORS (5) CREEP-FATIGUE EVALUATION METHOD FOR 316FR STAINLESS STEEL
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DEVELOPMENT OF 2012 EDITION OF JSME CODE FOR DESIGN AND CONSTRUCTION OF FAST REACTORS (5) CREEP-FATIGUE EVALUATION METHOD FOR 316FR STAINLESS STEEL

机译：2012年新型Edion Edition Edition Edity JSME编码的设计与施工（5）蠕变 - 疲劳评价方法316CR不锈钢

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摘要

The most important failure mode to be prevented in the design is creep-fatigue at elevated temperatures in fast reactors. 316FR stainless steel is a candidate material for. the reactor vessel and internal structures. Development of the procedure for evaluating creep-fatigue life is essential. The method for evaluating creep-fatigue life implemented in the Japan Society Mechanical Engineers code is based on the time fraction rule for austenitic stainless steel such as SUS304. Necessary equations such as fatigue curve and creep rupture curve for calculation of creep-fatigue life are evaluated, and the predicted creep-fatigue life by using the time fraction rule in 316FR stainless steel is compared with experimental data. The longest time to failure is about 100,000 h for evaluating creep-fatigue life. Fatigue curve, creep rupture curve, stress-strain curve and creep strain curve are provided for calculating creep-fatigue life. The creep-fatigue life is predicted within a factor of 2 even the test condition of the longest time to failure. Furthermore, comparison with the ductility exhaustion method was done to investigate the conservatism of the proposed method. Finally, the procedure based on the time fraction rule for evaluation of creep-fatigue life is proposed in 316FR stainless steel.
机译：在设计中待预防最重要的故障模式是快速反应器的升高温度下的蠕变 - 疲劳。 316FR不锈钢是候选材料。反应器容器和内部结构。开发评估蠕变疲劳生活的程序至关重要。评估日本社会机械工程师代码中实施的蠕变疲劳寿命的方法基于奥氏体不锈钢如SUS304的时间分数规则。评估了诸如疲劳曲线和蠕变破裂曲线的必要方程，以及通过使用316FR不锈钢中使用时间分数规则的预测蠕变疲劳寿命与实验数据。最长的失败时间约为10万小时，用于评估蠕变疲劳的生活。提供疲劳曲线，蠕变破裂曲线，应力 - 应变曲线和蠕变应变曲线，用于计算蠕变疲劳寿命。蠕变 - 疲劳寿命预测在2倍的时间内，即使是最长的故障时间的测试条件也是如此。此外，与延展性耗尽方法进行比较，以研究所提出的方法的保守。最后，提出了基于用于评估蠕变疲劳寿命的时间分数规则的程序，采用316FR不锈钢。

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