Evaluation of Welding Fatigue of Equivalent Structural Stress Method
Journal Title: 河南科技大学学报（自然科学版） - Year 2017, Vol 38, Issue 4
Abstract
In order to calculate the fatigue lifetime of welding line with all directions in the space accurately in design stage, the equivalent structural stress method was used to evaluate the fatigue lifetime of tubular Tshaped welding joints. Three kinds of finite element model of T-shaped welding joints in three different grid sizes were designed to calculate the structure stress. The stress cycle number of the welding line based on the software of FE-weld was calculated, and was compared with the experiment data. The result shows that the fatigue evaluation of welding joints is grid insensitive and precise through the equivalent structural stress method.
Authors and Affiliations
Yijun WANG, Qizhi DONG, Shoune XIAO, Xi'an LI
Keywords
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