scholarly journals Fatigue assessment of load-carrying welded cruciform joints

2013 ◽  
Vol 38 (3) ◽  
pp. 51-58
Author(s):  
T.I. Letova ◽  
S.V. Petinov
Keyword(s):  
Cruciform Joints ◽  
Fatigue Assessment ◽  
Load Carrying

scholarly journals Analysis of Correlation between Stresses and Fatigue Lives of Welded Steel Specimens Based on Real Three-Dimensional Weld Geometry

2016 ◽  
Vol 10 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Przemysław Stasiuk ◽  
Aleksander Karolczuk ◽  
Wiesław Kuczko
Keyword(s):  
Three Dimensional ◽  
Mean Value ◽  
Normal Stresses ◽  
Welded Steel ◽  
Cruciform Joints ◽  
Geometrical Properties ◽  
Weld Geometry ◽  
Load Carrying ◽  
Real Geometry ◽  
Statistical Hypotheses

Abstract Welded joints are areas of increased stresses in construction. The reason for this phenomenon is associated with the nonhomogeneous mechanical, structural and geometrical properties of the weld. In the article the correlations between locally raised stresses due to real geometry and fatigue lives of non-load carrying cruciform joints made from S355J2+N steel are analysed. Stresses were computed using Finite Element Method (FEM) based on real three-dimensional weld geometry obtained by 3D scanning. The specimens were experimentally tested under cyclic push-pull loading with a zero mean value of applied force. The correlation was analysed using Pearson’s correlation coefficient and statistical hypotheses. It was shown that statistically significant correlation exists between maximum values of normal stresses and fatigue lives.

Sign in / Sign up

Export Citation Format

Share Document