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About 500 fatigue-related projects – analyses and tests performed at Engineering Center STEYR during the last two decades have provided valuable feedback for the technology and software development.

This made FEMFAT one of the leading fatigue analysis codes in the automotive and non-automotive industry and provided the basis for its global acceptance. Efficiency and high quality are an ab­solute must for all our customers worldwide.

The methods used in FEMFAT are based on the latest scientific findings of the German FKM-guideline, on the work of Hück/Thrainer/Schütz (synthetic S/N-curves), on the local stress strain conception (TU-Darmstadt), on the R1MS-conception for assessment of welding seams and on ECS-proprietary methods for instance spot joints.

Supplementary to the statements made above, methods applicable to FEM were developed, such as the calculation of notch influence with regard to the relative stress gradient or consideration of the interaction of different stress-tensors by using the method of the critical cutting plane.

FEMFAT is based on verified and validated methods and hypotheses by comparing numerous test series with fatigue analysis results during many years of practical use at Engieering Center STEYR and multiple OEM’s.