Engineering Strain

Dimensionless measure of the stretch of a deforming line element, defined as the change in length of the line element divided by its original length.

Source: API TR 5C3, Technical Report on Equations and Calculations for Casing, Tubing, and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing, Upstream Segment, First Edition, December 2008. Global Standards


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