| 基于孔洞长大理论的多轴蠕变设计模型及其工程应用 |
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| 引用本文： | 姚华堂,轩福贞,王正东,涂善东.基于孔洞长大理论的多轴蠕变设计模型及其工程应用[J].核动力工程,2007,28(3):72-77. |
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| 作者姓名： | 姚华堂 轩福贞 王正东 涂善东 |
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| 作者单位： | 华东理工大学机械与动力工程学院,上海,200237 |
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| 摘 要： | 多轴蠕变是高温构件失效的重要原因,工程设计中必须予以考虑.本文介绍了以孔洞长大理论为基础的多轴蠕变设计方法;探讨了孔洞长大的基本原理;讨论了基于该理论的5个常用模型;分析了这些模型在R5、ASME III、RCC-MR 及VGB-R 509L 中的应用,指出了高温构件多轴蠕变设计的困难,并对进一步的工作提出了建议.
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| 关 键 词： | 蠕变设计 多轴状态 孔洞长大理论 工程应用 |
| 文章编号： | 0258-0926（2007）03-0072-06 |
| 修稿时间： | 2006-04-042006-10-12 |
Multi-Axial Creep Design Models Based on the Cavity Growth Theory and Its Applications in Engineering |
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| YAO Hua-Tang,XUAN Fu-zhen,WANG Zheng-dong,TU Shan-dong.Multi-Axial Creep Design Models Based on the Cavity Growth Theory and Its Applications in Engineering[J].Nuclear Power Engineering,2007,28(3):72-77. |
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| Authors: | YAO Hua-Tang XUAN Fu-zhen WANG Zheng-dong TU Shan-dong |
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| Affiliation: | School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | Multi-axial creep is one of the major reasons for the failures of high temperature components,and it is an important factor to be considered in the engineering design.In this paper,the multi-axial creep design approach based on cavity growth mechanisms is generalized.The basic theory for cavity growth is in-multi-axial creep design of elevated temperature components are pointed out and advices for its further re-search are presented.troduced.Five typical multi-axial creep design models based on cavity growth theory are discussed.Applica-tions of these models in R5,RCC-MR,ASME III and VGB-R 509L are analyzed.Difficulties faced in the |
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| Keywords: | Creep design Multi-axial stress states Void growth theory Applications |
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