| P91钢高温蠕变的数值研究 |
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| 引用本文： | 刘学,段向兵,闫平,郑善合.P91钢高温蠕变的数值研究[J].电力建设,2009,30(5):52-55. |
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| 作者姓名： | 刘学 段向兵 闫平 郑善合 |
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| 作者单位： | 1.中国华电工程(集团)有限公司; 2.大唐国际(香港)有限公司; 3.华北电力大学 |
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| 摘 要： | 根据P91钢的单轴及多轴蠕变实验数据,建立了P91钢在高温下的损伤-硬化蠕变数学计算模型,利用该模型实现了P91钢高温蠕变的数值计算。通过分析和研究金属在高温蠕变过程中出现的骨点应力,预测金属高温蠕变损耗情况,这对于评估高温构件的安全性和经济性意义重大。
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| 关 键 词： | P91钢 蠕变 骨点应力 有限元 UPFs |
Numerical Study of P91 Steel High Temperature Creep |
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| LIU Xue,DUAN Xiang-bin,YAN Ping,ZHEN Shan-he.Numerical Study of P91 Steel High Temperature Creep[J].Electric Power Construction,2009,30(5):52-55. |
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| Authors: | LIU Xue DUAN Xiang-bin YAN Ping ZHEN Shan-he |
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| Affiliation: | LIU Xue, DUAN Xiang-bin, YAN Ping, ZHEN Shan-he ( 1. China Huadian Engineering Co., Ltd., Beijing 100044, China; 2. Datang International Power Generation Co., Ltd. (Hong Kong), Beijing 100053, China; 3. North China Electric Power University, Beijing 102206, China) |
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| Abstract: | Based on test data of P91 steel single-and multi-axial creep,mathematical model of damage-hardening creep of P91 steel under high temperature is established.And numerical calculation is performed using this model.Through analyzing node stresses occurred during metal high temperature creep,metal high temperature creep loss can be predicted,which has great significances on evaluating high temperature component safety and economy. |
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| Keywords: | UPFs |
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