A Stress Classification Line or SCL is a straight path along the cross section, from the inside to the outside of a pressure vessel. It is a line drawn perpendicular to both the inside and outside surfaces. In a finite element analysis (FEA), the points along this path are represented by nodes. A FEA simulation provides the stress results at the nodes. The stress linearization tool in the software converts the nodal data for the stress along this line into membrane and bending components.
This page is part of the Encyclopedia of Stresses in Solids