Method for calculating the operating life of a steam pipe with a creep-fatigue crack near a weld joint
Journal Title: Український журнал із машинобудування і матеріалознавства - Year 2018, Vol 4, Issue 1
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.
Authors and Affiliations
Iryna Dolinska, Roman Palash
Keywords
Related Articles
- EP ID EP497985
- DOI 10.23939/ujmems2018.01.021
- Views 113
- Downloads 0
Ways of Improvement of Operational Efficiency of Hopper Devices
The operation of hopper devices, which are used in industry, civil engineering, agriculture and transport, is analyzed on the article. The external factors, which influence the process of charging, storing and dischargin...
Influence of the Technological Gap Value of the Tool-Joint Tapered Thread on the Drilling Mud Flow Rate in Its Screw Coupling
Tightness is one of the parameters of the quality of pipe drill string. Consequently, the reduction of hydraulic costs and wear of the tool-joint tapered thread of the drill string can be achieved by changing the cutting...
Development of Welding Consumables for Wet Underwater Welding of High-Alloy Corrosion-resistant Steel
This paper discusses a technology of mechanized wet underwater welding of high-alloy corrosion-resistance steel. The main aim of the investigation is development of self-shielded flux-cored wire for wet underwater weldin...
Impact and Particle Buffered Vibration Absorbers Optimization and Design
Passive, broadband targeted energy transfer refers to the one-way directed transfer of energy from a primary subsystem to a nonlinear attachment; this phenomenon is realized in damped, coupled, essentially nonlinear impa...
The Influence of Chemical-Thermal Treatment on Granulometric Characteristics of Titanium Sponge Powder
The phase composition and structure of powders of titanium sponge exposed to processes of chemical and thermal processing is investigated. As a result of X-ray analysis, it is found that after hydrogenation titanium powd...