Abstract
We propose a computational model for the evaluation of the residual service life of a pipe of the oil pipeline weakened by an external surface stress-corrosion crack for a laminar flow of oil with multiple hydraulic shocks. The model is based on the earlier developed energy approach to the investigation of retarded crack propagation, the model of application of pulsed loads, and basic mechanisms of propagation of stress-corrosion cracks. By using the model, we study the dependence of the residual service life of the pipe of oil pipeline made of Kh60 steel on the number of hydraulic shocks in the pipe.
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