Thermo-Mechanical Fatigue

The fatigue life of a component can be affected by its temperature environment. Not only can temperature changes cause stress cycles that result in fatigue damage, but a material's fatigue strength may change with temperature. To account for this, we assign each location on our model the appropriate fatigue properties for its temperature or temperature history. We also efficiently combine the thermal stress history with stresses from other sources, which may be on very different time scales.

Analysis van Thermo-Mechanical Fatigue

Components in high temperature operating environments such as engine pistons, exhaust systems and manifolds can suffer from complex failure modes. When assessing thermo-mechanical fatigue, we solve for high temperature fatigue and creep by using stress and temperature results from finite element simulations. Mechanical loads that vary at a different rate to the temperature variations can also be combined. Required material data is derived from standard constant temperature fatigue and creep tests.

We offer high temperature fatigue methods such as Chaboche and Transient Chaboche. Creep analysis methods include Larson-Miller and Chaboche creep.