The Research of Fatigue Properties of Steel Q235 Butt Welded Joint

Abstract:

The research on the fatigue life of butt welded joint has important significance to hoisting equipment’s design, development and using safety. This paper conducted a study on fatigue properties of the most widely used joint at hoisting equipment-steel Q235 butt welded joint’s, based on the improved linear equivalent structural stress method, the stress of the weld joint can be obtained, and the master S-N curve of Q235 weld joint be acquired through fatigue test, thus the joints stress distribution under different stress environment can be gained through improved linear equivalent structural stress calculation and the fatigue life of the joint can be realized at the master S-N curve. The stress distribution situation and the fatigue life of butt welded joint can be calculated by integrated finite element software, this have profound reference significance to hoisting machinery industry.

• Periodical: Advanced Materials Research (Volume 937)
• Pages: 158-161
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.937.158
• Online since: May 2014
• Authors: Wei Ping Ouyang*, Jin Zhang, Xiu Dong Xu
• Keywords: Fatigue Life, Improved Linear Equivalent Structural Stress Method, Master S-N Curve, Q235 Butt Welded Joint

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