Py-Fatigue is a Python package for cycle-counting, fatigue analysis and crack propagation prediction. It is developed by OWI-Lab at Vrije Universiteit Brussel. Full documentation can be found here.

The main features of Py-Fatigue are:

• a powerful cycle-counting implementation based on the ASTM E1049-85 rainflow method that retrieves the main class of the package: CycleCount
• capability of storing the CycleCount results in a sparse format for storage and memory efficiency
• easy applicability of multiple mean stress effect correction models
• implementation of low-frequency fatigue recovery when "summing" multiple CycleCount instances
• fatigue analysis through the combination of SN curves and multiple damage accumulation models
• crack propagation analysis through the combination of the Paris' law and multiple crack geometries
• and more...

Py-Fatigue is heavily based on numba, numpy and pandas, for the analytical part, and matplotlib as well as plotly for the plotting part.

Therefore, it is highly recommended to have a look at the documentation of these packages as well.

Py-Fatigue can be installed via pip:

pip install py_fatigue

If you use Py-Fatigue in your research, please use the following citation:

D’Antuono, P. D., Weijtjens, W. W., & Devriendt, C. D. (2022). Py-Fatigue [Software].
In Github (2.0.1). https://www.owi-lab.be/. https://owi-lab.github.io/py_fatigue

@misc{dantuono-2022,
	author = {given-i=P.D., given=Pietro, family=D'Antuono and given-i=W.W., given=Wout, family=Weijtjens and given-i=C.D., given=Christof, family=Devriendt},
	publisher = {https://www.owi-lab.be/},
	title = {{Py-Fatigue}},
	year = {2022},
	url = {https://owi-lab.github.io/py_fatigue},
}

@software{dantuono-2022,
	author = {given-i=P.D., given=Pietro, family=D'Antuono and given-i=W.W., given=Wout, family=Weijtjens and given-i=C.D., given=Christof, family=Devriendt},
	date = {2022},
	language = {english},
	publisher = {https://www.owi-lab.be/},
	title = {Py-Fatigue},
	type = {software},
	url = {https://owi-lab.github.io/py_fatigue},
	version = {2.0.1},
}

The package is licensed under the GNU General Public License v3.0.

Py-Fatigue was originally developed in the framework of the MAXWind project, funded by the Federale Overheidsdienst Economie, KMO, Middenstand en Energie (FOD Economie) in the framework of the Energy Transition Fund (ETF).