The aim of this work is to study the stress-strain state of the pipeline affected by rill erosion.

What is it about?

The numerical experiment includes several stages, namely: the develop-ment of the finite element model (FEM) of the pipeline affected by rill erosion; meshing pro-cess of the pipeline model; load application to the pipeline; and setting the boundary condi-tions. A series of numerical experiments is carriedout in varying the depth of rill erosion re-sulting in the equivalent stress distribution (von Mieses stresses) over the pipeline FEM. The maximum and minimum values of the pipeline strains and von Mieses stresses are obtained. This stress distribution allows detecting the critical depth value for the rill erosion in the pipe-line under study. A study of the stress-strain state is an important and urgent task, the solution of which determines a safe operation of the field pipeline. The stress-strain state caused by the internal and external pressure or tensile stresses affects the pipeline reliability. Evaluation of the pipeline properties is one of the preventive measures against accidental damage. (4) (PDF) MODELING OF PIPELINE STRESS-STRAIN STATE IN COMPLICATED ENVIRONMENT. Available from: https://www.researchgate.net/publication/330388818_MODELING_OF_PIPELINE_STRESS-STRAIN_STATE_IN_COMPLICATED_ENVIRONMENT [accessed Jul 02 2019].

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Why is it important?

The pipeline modeling and the stress-strain anal-ysis are carried out using the ANSYS finite element program

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