https://github.com/boschresearch/pylife

a general library for fatigue and reliability
https://github.com/boschresearch/pylife

education engineering fatigue fatigue-analysis lifetime material material-fatigue material-science mechanical-engineering rainflow reliability woehler

Last synced: 2 months ago
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a general library for fatigue and reliability

• Host: GitHub
• URL: https://github.com/boschresearch/pylife
• Owner: boschresearch
• License: apache-2.0
• Created: 2019-11-21T07:48:31.000Z (over 6 years ago)
• Default Branch: develop
• Last Pushed: 2026-03-19T15:00:17.000Z (3 months ago)
• Last Synced: 2026-03-20T06:56:43.296Z (3 months ago)
• Topics: education, engineering, fatigue, fatigue-analysis, lifetime, material, material-fatigue, material-science, mechanical-engineering, rainflow, reliability, woehler
• Language: Python
• Homepage: https://pylife.readthedocs.io
• Size: 21.1 MB
• Stars: 178
• Watchers: 10
• Forks: 41
• Open Issues: 32
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Notice: NOTICE

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README

          
# pyLife – a general library for fatigue and reliability

[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/boschresearch/pylife/develop?labpath=demos%2Findex.ipynb)

[![Documentation Status](https://readthedocs.org/projects/pylife/badge/?version=latest)](https://pylife.readthedocs.io/en/latest/?badge=latest)

[![PyPI](https://img.shields.io/pypi/v/pylife)](https://pypi.org/project/pylife/)

![PyPI - Python Version](https://img.shields.io/pypi/pyversions/pylife)

[![Testsuite](https://github.com/boschresearch/pylife/actions/workflows/pytest.yml/badge.svg)](https://github.com/boschresearch/pylife/actions/workflows/pytest.yml)

pyLife is an Open Source Python library for state of the art algorithms used in

lifetime assessment of mechanical components subjected to fatigue.

## Purpose of the project

This library was originally compiled at [Bosch

Research](https://www.bosch.com/research/) to collect algorithms needed by

different in house software projects, that deal with lifetime prediction and

material fatigue on a component level. In order to further extent and

scrutinize it we decided to release it as Open Source.  Read [this

article](https://www.bosch.com/stories/bringing-open-source-to-mechanical-engineering/)

about pyLife's origin.

So we are welcoming collaboration not only from science and education but also

from other commercial companies dealing with the topic. We commend this library

to university teachers to use it for education purposes.

The company [Viktor](https://viktor.ai) has set up a [web application for Wöhler

test analysis](https://cloud.viktor.ai/public/wohler-fatigue-test-analysis)

based on pyLife code.

## Contents

There are/will be the following subpackages:

* `stress` everything related to stress calculation

	* equivalent stress

	* stress gradient calculation

	* rainflow counting

	* ...

* `strength` everything related to strength calculation

	* failure probability estimation

	* S-N-calculations

	* local strain concept: FKM guideline nonlinear

	* ...

* `mesh` FEM mesh related stuff

    * stress gradients

	* FEM-mapping

	* hotspot detection

* `util` all the more general utilities

	* ...

* `materialdata` analysis of material testing data

    * Wöhler (SN-curve) data analysis

* `materiallaws` modeling material behavior

    * Ramberg Osgood

    * Wöhler curves

* `vmap` a interface to [VMAP](https://www.vmap.eu.com/)

## License

pyLife is open-sourced under the Apache-2.0 license. See the

[LICENSE](LICENSE) file for details.

For a list of other open source components included in pyLife, see the

file [3rd-party-licenses.txt](3rd-party-licenses.txt).