| 应用总应变-应变能区分法预测热机械疲劳寿命 |
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| 引用本文： | 胡绪腾,宋迎东.应用总应变-应变能区分法预测热机械疲劳寿命[J].燃气涡轮试验与研究,2012(1):14-16,53. |
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| 作者姓名： | 胡绪腾 宋迎东 |
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| 作者单位： | 南京航空航天大学机械结构力学及控制国家重点实验室 |
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| 摘 要： | 简要介绍了总应变-应变能区分法(TS-SEP)的基本假设和基本方程,应用TS-SEP法对三种金属材料(304不锈钢、1Cr-1Mo-0.25V钢和2.25Cr-1Mo钢)的热机械疲劳试验数据进行了分析和预测,初步评估了TS-SEP法对热机械疲劳数据的相关和预测能力。研究结果表明:TS-SEP法与总应变-应变范围区分法(TS-SRP),对三种金属材料的热机械疲劳试验数据具有相当的相关和预测能力,寿命预测分散带均在2倍范围内。
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| 关 键 词： | 热机械疲劳 蠕变-疲劳 寿命预测 总应变-应变能区分法 应变能区分法 应变范围区分法 |
Life Prediction for Thermomechanical Fatigue Using Total Strain Version of Strain Energy Partitioning |
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| HU Xu-teng,SONG Ying-dong.Life Prediction for Thermomechanical Fatigue Using Total Strain Version of Strain Energy Partitioning[J].Gas Turbine Experiment and Research,2012(1):14-16,53. |
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| Authors: | HU Xu-teng SONG Ying-dong |
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| Institution: | (State Key Laboratory of Machinery Structural Mechanics and Control, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The basic concepts and equations of Total Strain Version of Strain Energy Partitioning(TS-SEP) are introduced briefly.Then the correlative and predictive capabilities of TS-SEP to thermomechanical fatigue(TMF) data of three metals(Type 304 Stainless Steel,1Cr-lMo-O.25V Steel and 2.25Cr-lMo Steel) in the literature are evaluated.The result indicates that TS-SEP and Total Strain Version of Strain Range Partitioning(TS-SRP) have comparative correlative and predictive capabilities with the TMF data of three steels.The maximum life prediction scatter bands of two methods are both less than 2.0. |
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| Keywords: | thermomechanical fatigue creep-fatigue life prediction TS-SEP SEP SRP |
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