Creation of Three-Dimensional Model of Magnetized Section of Pipeline for Intratubal Magnetic Flaw Detection

Аннотация

A method of detection and identification of defects inside pipes that have been magnetized by a variable current is considered. A three-dimensional computer model of a magnetized section of a pipeline is developed with the use of the method of finite elements. Through the use of the model, it is possible to calculate the distribution of the magnetic flux inside the pipeline as a variable electrical current travels through the pipeline. The computational model may be used to create an effective measurement system for intratubal magnetic flaw detection.