| 基于切口应力强度理论的横向角接焊接接头的疲劳强度评估 |
| |
| 引用本文： | 谌伟,严仁军,Nigel BARLTROP,杨平,刘恩骞,秦恺.基于切口应力强度理论的横向角接焊接接头的疲劳强度评估[J].船舶力学,2015(9):1116-1125. |
| |
| 作者姓名： | 谌伟 严仁军 Nigel BARLTROP 杨平 刘恩骞 秦恺 |
| |
| 作者单位： | 1. 武汉理工大学 交通学院船舶与海洋工程系，高速船舶工程教育部重点实验室，武汉 430063;2. 斯特莱斯克莱德大学 船舶与海洋工程系，英国格拉斯哥 G4 0LZ |
| |
| 摘 要： | 在焊接接头处，由于几何的不连续造成了局部的应力集中，对其疲劳强度评估的研究是十分必要的。文章提出采用奇异强度（as）来计算接头处的几何应力，并基于N-SIF方法分析了不同几何尺寸下十字接头的疲劳强度。结果表明该修正公式可以十分简便地评估出焊接接头处的疲劳强度。
|
| 关 键 词： | 十字接头 奇异强度(as) 切口应力强度因子(N-SIF) 疲劳强度 |
Fatigue Strength Evaluation of Transverse Fillet Welded Joints Based on Notch Stress Strength Theory |
| |
| Abstract: | It is necessary to better understand the fatigue strength evaluation of welded joints with con-sideration of the discontinuous geometry factors that produce locally high stresses. This paper pro-posed a new method of determining geometric stress at the corner by using the singularity strength‘as’. The fatigue strength of cruciform joints with different geometries are summarized in a single scatter band by the N-SIF method. The results show that the proposed method has the additional ad-vantage in simplified fatigue strength estimation for welded joints. |
| |
| Keywords: | cruciform joints singularity strength (as) notch-stress intensity factor (N-SIF) fatigue strength |
| 本文献已被 万方数据 等数据库收录！ |
