Method for calculating the operating life of a steam pipe with a creep-fatigue crack near a weld joint
Date
2018-01-29
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
A method for determining the period of sub-critical growth of a semielliptical
creep-fatigue crack in the internal surface of a pipe wall of the steam pipeline is proposed. The crack
is located near the ring weld in the field of residual stresses in the heat-affected zone. The
dependence of the residual resource of the pipe of a steam pipeline with the weld joint on the
location of the centre of the crack relative to the axis of the weld is ascertained.
Description
Keywords
welded joint, steam pipeline, creep-fatigue crack, residual resource, period of subcritical growth of the crack
Citation
Dolinska I. Method for calculating the operating life of a steam pipe with a creep-fatigue crack near a weld joint / Iryna Dolinska, Roman Palash // Ukrainian Journal of Mechanical Engineering and Materials Science. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 4. — No 1. — P. 21–28.