| 拉-拉应力条件下蠕变-疲劳寿命预测 |
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| 引用本文： | 苏翰生,何晋瑞. 拉-拉应力条件下蠕变-疲劳寿命预测[J]. 航空学报, 1991, 12(5): 303-309 |
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| 作者姓名： | 苏翰生 何晋瑞 |
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| 作者单位： | 北京航空材料研究所(苏翰生)，北京航空材料研究所(何晋瑞) |
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| 摘 要： | 本文讨论了应变能区分法(SEP),应变范围区分法(SRP),Ostergre M(OM)和频率修改法(FM)在拉-拉应力条件下应用的可行性。分析了滞后环为半开环状态下通过实验测量获得寿命预测所需的应变分量。叙述了应变能区分法(SEP)的数值计算方法(SEP-NCM)应用的有效性和预测能力。
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| 关 键 词： | 拉-拉应力 应变能模型 蠕变-疲劳 数值计算 |
CREEP-FATIGUE LIFE PREDICTION UNDER THE CONDITION OF TENSION-TENSION STRESS |
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| Beijing University of Aeronautics and Astronautics Su Hangshfeng and He Jinrui. CREEP-FATIGUE LIFE PREDICTION UNDER THE CONDITION OF TENSION-TENSION STRESS[J]. Acta Aeronautica et Astronautica Sinica, 1991, 12(5): 303-309 |
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| Authors: | Beijing University of Aeronautics and Astronautics Su Hangshfeng and He Jinrui |
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| Affiliation: | Beijing University of Aeronautics and Astronautics Su Hangshfeng and He Jinrui |
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| Abstract: | This feasibility of application of Strain Energy Partitioning (SEP), Strain Range Partitioning(SRP), Ostergren M(OM) and Frequence Modified method(FM) to tension-tension stress condition were discussed. In case of the hysteresis loop half-opened, strain components for life prediction obtained by means of experiment measurement had been analysed. The effectiveness and predictcapability by using Numerical Computational Method of SEP (SEP-NCM) were described. |
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| Keywords: | tension-tension stress strain energy model creep-fatigue numerical compute. |
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