DEVELOPMENT OF INFORMATION SUPPORT OF QUALITY MANAGEMENT OF UNDERGROUND PIPELINES
| Autor: | B. P. Koman, Larysa Yuzevych, Ruslan Skrynkovskyy |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020209 energy General Engineering General Physics and Astronomy Corrosion monitoring 02 engineering and technology Structural engineering engineering.material Residual Corrosion Pipeline transport 020303 mechanical engineering & transports 0203 mechanical engineering Coating Corrosion fatigue 0202 electrical engineering electronic engineering information engineering Polarization (electrochemistry) business Stress intensity factor |
| Zdroj: | EUREKA: Physics and Engineering. 4:49-60 |
| ISSN: | 2461-4262 2461-4254 |
| DOI: | 10.21303/2461-4262.2017.00392 |
| Popis: | Recommendations are worked out in relation to the evaluation of longevity and quality of underground metallic pipelines in the conditions of corrosion fatigue. The features of early exposure of crisis (before accident) situations are set. A complex qualimetric criterion is offered for determination of level of quality of pipeline by the account of his technological specific. The elements of investment project and methodology of estimation of resource are worked out. and also influences of factors of different nature on risks and possibility of accident of gas pipelines. The model of corrosion fatigue of metal is based on power criterion of destruction mechanics according to which there is an act of destruction in an arbitrary elemental volume of a material if the total irreversibly scattered energy of plastic deformation for all load cycles will reach a critical value equal to the energy of destruction. In order to control the corrosion process taking the polarization potential into account, a criterion relation is used to determine the rate of residual corrosion of a metal in the defect of the insulation coating, in particular, at the top of the crack, which is an anode region. The adhesive strength criteria of biocorrosive aggressive soil, mechanical criteria for the stress intensity factor, the criterion of corrosion resistance defect, criterion correlation for estimating the speed of residual corrosion in defect of insulation coating with imposed diagnostic weight characteristics and diagnostic value of tests, that complement, clarify and improve the corrosion monitoring system of pipelines, helpful for controlling and optimizing of the corrosion process, and Development of recommendations for anti-corrosion protection of metal are used in areas with non-stationary plastic deformation. |
| Databáze: | OpenAIRE |
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