航空学报 > 1994, Vol. 15 Issue (11): 1408-1410

对焊接头几何形状参数统计分布及焊趾处K_t计算

胡兵, 薛景川, 杨玉恭   

  1. 飞机结构强度研究所,陕西灌县,727100
  • 收稿日期:1993-01-18 修回日期:1993-06-10 出版日期:1994-11-25 发布日期:1994-11-25

STATISTICAL DISTRIBUTION OF BUTT WELDED JOINTS' GEOMETRY PARAMETERS AND CALCULATION OF K AT THE WELD TOE

Hu Bing, Xue Jingchuan, Yang Yugong   

  1. Aircraft Structure Strength Research Institute,Yao Country,Shanxi,727l00
  • Received:1993-01-18 Revised:1993-06-10 Online:1994-11-25 Published:1994-11-25

摘要: 对焊接头主要外形尺寸进行了测量,经统计分析:焊趾角、焊缝宽、焊缝加厚高与接头错位符合正态分布,焊趾曲率半径符合对数正态分布,焊缝加厚高与接头错位亦符合威布尔分布。依此对焊接头焊趾处应力集中系数Kt进行了计算。

关键词: 焊接联接, 统计分布, 应力集中, 系数

Abstract: The major shape measurements of butt welded joints are measured It is obtained by statistical analvsis taht the statistical distribution of weld toe angle,weld width,weld reinforce-ment and weld misalignment is nonnal and that of radius at the weld toe is logarithm nonnal.It is also found that the distribution of weld reinforeement and misalignment is Weibull.The stress concentration factor Kt at the weld toe is calculated.

Key words: welded joints, statistical distribution, stress concentration, coefficients

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