Definition(s)
Cauchy Stress or True Stress
Force applied to the surface of a body divided by the current area of that surface.
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