PLE is capable of performing alternating yield calculation as described in the norm NEN 3650-2, paragraph D3.4. It is a material-linear calculation giving insight into whether a pipeline might be damaged because deformations introduce material-plastic deformations. The program calculates the alternating yield criterion according to a generally applicable procedure that allows the direction of principal stresses to change between load cases.

These alternating yield calculations can also be used as a basis for low cycle fatigue (LCF) calculation outside the program.