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The critical pressure estimation of the steel major-diameter tubes’ destruction of the gas-oil main pipelines under the weld faulty fusion

Shinkin V. N.  (Doctor of Science, professor of the National Research Technological University «MISiS», Moscow )

For the elasto-plastic destruction of the tube wall under the weld faulty fusion, the mathematical criteria for the definition of the critical in-tube pressure is obtained. The results of the investigation are important for the diagnostics of the failure’s causes of the steel major-diameter tubes for the main gas-and-oil pipelines.

Keywords:steel welded major-diameter tubes, critical pressure of pipe fracture, the nonlinear elasto-plastic model of continuum.

 

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Citation link:
Shinkin V. N. The critical pressure estimation of the steel major-diameter tubes’ destruction of the gas-oil main pipelines under the weld faulty fusion // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2015. -№05-06. -С. 7-11
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