A Method to Estimate P-S-N Curve for Misaligned Welded Joints

摘要: Publisher Summary The development of the engineering application welding techniques in industries aerospace manufacturing, shipbuilding, and offshore exploitation makes research on fatigue life welded joints a problem with utmost importance. In assessment one important relations is curve survival rate (P-S-N curve). Because many factors influence weld, examination behavior joint very complex. A P-S-N usually time-consuming costly from test. Therefore, predicting method for will certainly be useful helpful gaining economic efficiency. By means formula effective stress concentration factor under symmetrical cycle loading Peterson's equation concept worst-case notch factor, estimating developed when 50%.