Fatigue Response of a Random Nonproportional Load

Application ID: 2201

A thin-walled frame with a central cutout is subjected to a random load. Although the stresses are far below the yield level of the material, damage accumulates over the load history. The Rainflow counting algorithm is used to define the load scenario and Palmgren-Miner linear damage model quantifies the damage.

This model example illustrates applications of this type that would nominally be built using the following products: