Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (4): 725-727.

• Research paper • Previous Articles     Next Articles

THE DETERMINATION OF THE RESIDUAL STRESS DURING THE FATIGUE CRACK EXTENDSION

X.G.Guo1) , H.R.Yang1)and T.Wu2) 1) Shenyang University ,Shenyang 110044 ,China. 2) Liaoning Jin sheng Construction Company ,Shenyang 110044 ,China.   

  • Received:1999-08-25 Revised:1999-08-25 Online:1999-08-25 Published:2009-10-10

Abstract: The distribution law of the lateral residualstress at the welding seam is determinated by meansofcuttingthespecimen. Becausetocutthespecimencansimulateapproximatelytheex tension ofthe fatiguecrack,through measuring thestressreleased and calculating the distri bution oftheresidualstressthelaw isfound thattherateofthefatiguecrackextensionisaf fected bytheresidualstress.

Key words: crack extension , weld, residualstress