| 焊接接头疲劳评定的局部法研究现状 |
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| 引用本文： | 杨新岐,张艳新,霍立兴,张玉凤. 焊接接头疲劳评定的局部法研究现状[J]. 焊接学报, 2003, 24(3): 82-86 |
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| 作者姓名： | 杨新岐 张艳新 霍立兴 张玉凤 |
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| 作者单位： | 天津大学,材料科学与工程学院,天津,300072 |
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| 摘 要： | 局部法(Local Approach)是近年来发展起来的焊接接头疲劳评定的一种新方法。目前已提出了多种焊接接头疲劳评定的局部准则，如缺口应力强度因子法(N—SIF)、等效应力强度因子法(E—SIF)、临界距离法(CDM)包括点(PM)、线(LM)和面(AM)法、临界面法及体积法。文中对这些局部法的基本原理、分析步骤及影响因素进行了介绍，综述了局部法研究现状并对目前局部法研究存在的问题进行了讨论。
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| 关 键 词： | 焊接接头 疲劳评定 局部法 研究现状 缺口应力强度因子法 等效应力强度因子法 临界距离法 临界面法 |
| 文章编号： | 0253-360X(2003)03-82-05 |
| 收稿时间： | 2002-09-02 |
Research progress on fatigue assessment of welded joints by local approaches |
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| YANG Xin qi,ZHANG Yian xin,HUO Li xing and ZHANG Yu feng. Research progress on fatigue assessment of welded joints by local approaches[J]. Transactions of The China Welding Institution, 2003, 24(3): 82-86 |
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| Authors: | YANG Xin qi ZHANG Yian xin HUO Li xing ZHANG Yu feng |
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| Affiliation: | School of material Science and Engineering, Tianjing University, Tianjin 300072, China,School of material Science and Engineering, Tianjing University, Tianjin 300072, China,School of material Science and Engineering, Tianjing University, Tianjin 300072, China and School of material Science and Engineering, Tianjing University, Tianjin 300072, China |
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| Abstract: | The local approach is one of the most important methods developed in recent years for fatigue assessment of welded joints.Various local fatigue criteria for fatigue assessment are developed in recent years,such as notch stress intensity factor (N SIF),equivalent stress intensity factor (E SIF),critical distance method (CMD) which includes point method (PM),line method (LM) and area method (AM),critical plane method (CPM) and volumetric method (VM).The principles,procedures and effect factors about the local approaches were introduced,the present research situation was reviewed and the existed problems for local approaches were discussed in this paper. |
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| Keywords: | welded joints fatigue assessment local approaches |
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