Reduction of longitudinal axial residual stresses in near-root region of circumferential joint of steam pipeline in technological way

Metalurgija

关键词: steel;    weld;    stress;    steam pipeline;    static strength of welds;   

DOI  :  

来源: DOAJ

【 摘 要 】

The paper proposes a variant for solving the problem of reduction of longitudinal residual stresses in near-root region of a circumferential welded joint of section of steam pipeline by FEM simulation of the stress-strain state of repaired section of a circumferential weld in the zone of lack of root penetration on a thin-wall shell of 89 mm diameter and 6 mm wall thickness from steel 20. The result of solving the problem is total distribution of stresses and residual plastic deformations in the repaired zone.

【 授权许可】

Unknown