The Finite Element Research of Fatigue Properties of Steel Q345 Butt Welded Joint

Abstract:

The research of fatigue properties of the butt welded joint, though a large number of fatigue tests are need to be carried out, has significant influence to hoisting equipment’s design, development and using safety. This paper conducted a study on simulating the fatigue properties of widely used steel Q345 butt welded joint’s by finite element method based on the improved linear equivalent structural stress theory. The originally massive amount of fatigue tests and data processing could be saved. In order to ensure the accuracy of the fatigue modeling, a batch of Q345 butt welded joints were prepared for the fatigue tests which is used to contrast with the modeling result. The stress distribution under different load situation and the fatigue life of the joints, which have profound reference significance to hoisting machinery industry, can be acquired through modeling.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 1087-1090
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.1087
• Online since: October 2014
• Authors: Wei Ping Ouyang*, Liang Sheng Chen, Xiu Dong Xu
• Keywords: Fatigue Property, Finite Element Method (FEM), Improved Linear Equivalent Structural Stress Method, Q345 Butt Welded Joint

References

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