METHOD AND PROGRAM FOR ANALYZING PIPE WALL-THICKNESS VARIATIONS
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United States of America Patent
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Aug 27, 2015
app pub date -
Dec 12, 2014
filing date -
Feb 26, 2014
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Abstract
A method of analyzing the wall thickness distribution of a pipe has the steps of determining the distribution of the deviation of wall thickness angularly of the pipe from a desired wall thickness distribution, and approximating the determined distribution of the wall thickness deviation through the additive overlaying of a plurality of specified distributions of the wall thickness deviation angularly. The distributions of the wall thickness deviation each represent a respective real defect type that is possible during the manufacture of the pipe, and at least one of the specified distributions represents a defect type that occurs only in an angular range of <180°.
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