| 交变载荷下1.25Cr-0.5Mo钢裂纹疲劳扩展数值模拟 |
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| 引用本文： | 李国成,王为良,潘锦泰.交变载荷下1.25Cr-0.5Mo钢裂纹疲劳扩展数值模拟[J].化工机械,2010,37(5):613-616. |
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| 作者姓名： | 李国成 王为良 潘锦泰 |
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| 作者单位： | 中国石油大学,山东省东营市257061 |
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| 摘 要： | 针对在石油化工行业高温设备中广泛使用的1.25Cr-0.5Mo钢,利用有限元分析软件ANSYS,模拟分析其在交变应力载荷下的裂纹扩展行为,得出了裂纹在不同的载荷条件下的扩展规律。在分析过程中,采用损伤累积的方法,对每个载荷步的裂纹扩展进行累积,提高了结果的可信度。
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| 关 键 词： | 1.25Cr-0.5Mo钢 疲劳 交变应力 裂纹扩展 应力强度因子 ANSYS |
Numerical Simulation of the Crack Fatigue Extension of 1.25Cr-0.5Mo Steel under Alternative Loads |
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| LI Guocheng,WANG Weiliang,PAN Jintai.Numerical Simulation of the Crack Fatigue Extension of 1.25Cr-0.5Mo Steel under Alternative Loads[J].Chemical Engineering & Machinery,2010,37(5):613-616. |
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| Authors: | LI Guocheng WANG Weiliang PAN Jintai |
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| Affiliation: | (China University of Petroleum,Dongying,257061,Shandong,China) |
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| Abstract: | ANSYS software was used to simulate and analyze the crack extension of 1.25Cr-0.5Mo steel widely used in the high temperature plants of petrochemical industry under alternative loads,and the extension law of the cracks under different loads was obtained.The damage accumulation method was used to accumulate the crack extension at each load step,and the reliability of the result was raised. |
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| Keywords: | 1 25Cr-0 5Mo Steel Fatigue Alternative Stress Crack Extension Stress Intensity Factor ANSYS |
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