Mechanical APDL Structural Analysis Guide

14.3.7. Sample Input.

A sample input listing for a fatigue evaluation is shown below:

! Enter POST1 and Resume the Database:

/POST1

RESUME,...

! Number of Locations, Events, and Loadings

FTSIZE,...

! Material Fatigue Properties:

FP,1,....! N values

FP,21,...! S values

FP,41,...! T values

FP,51,...! Sm values

FP,61,...! Elastic-plastic material parameters

! Locations, Stress Concentration Factors, and Location Titles

FL,...

! Store Stresses (3 Different Methods)

! Store Stresses Manually:

FS,...

! Retrieve Stresses from the Results File:

SET,...

FSNODE,...

! Store Stresses at a Cross-Section:

PPATH,...

SET,...

FSSECT,...

! Event Repetitions and Scale Factors

FE,...

! Activate the Fatigue Calculations

FTCALC,...

! Review the Results (List the output file)

FINISH

See the Command Reference for a discussion of the FTSIZE,FP,FL,FS,FSNODE,PPATH,FSSECT,FE,
and FTCALC commands.

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Evaluating Fatigue