# pylith

**Repository Path**: runyuanj/pylith

## Basic Information

- **Project Name**: pylith
- **Description**: pylith 地震模拟。 文档见pylith-2.2.2
- **Primary Language**: Python
- **License**: MIT
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-08-03
- **Last Updated**: 2026-01-25

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# PyLith

[![DOI](https://www.zenodo.org/badge/DOI/10.5281/zenodo.14635926.svg)](https://doi.org/10.5281/zenodo.14635926)
[![MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/geodynamics/pylith/blob/main/LICENSE.md)
[![Build Status](https://github.com/geodynamics/pylith/actions/workflows/ci-main.yml/badge.svg)](https://github.com/geodynamics/pylith/actions/workflows/ci-main.yml)

## Description

PyLith is an open-source finite-element code for dynamic and
quasi-static simulations of crustal deformation, primarily earthquakes
and volcanoes.

* Main page: [https://geodynamics.org/resources/pylith](https://geodynamics.org/resources/pylith)
  * [Documentation](https://pylith.readthedocs.io/en/latest/)
  * Binary packages
  * Utility to build PyLith and all of its dependencies from source
*
  [PyLith parameter viewer](https://geodynamics.github.io/pylith_parameters/) for viewing `.json` parameter files.
* Submit bug reports via [GitHub issues](https://github.com/geodynamics/pylith/issues).
* Post all questions to the [PyLith category](https://community.geodynamics.org/c/pylith/) on the [CIG Community Forum](https://community.geodynamics.org).

## Features

* Quasi-static (implicit) and dynamic (explicit) time-stepping
* Cell types include triangles, quadrilaterals, hexahedra, and tetrahedra
* Linear elastic, linear and generalized Maxwell viscoelastic, power-law viscoelastic, and Drucker-Prager elastoplastic materials
* Infinitesimal and small strain elasticity formulations
* Fault interfaces using cohesive cells
  * Prescribed slip with multiple, potentially overlapping earthquake ruptures and aseismic creep
  * Spontaneous slip with slip-weakening friction and Dieterich rate- and state-friction fault constitutive models
* Time-dependent Dirichlet (displacement/velocity) boundary conditions
* Time-dependent Neumann (traction) boundary conditions
* Time-dependent point forces
* Absorbing boundary conditions
* Gravitational body forces
* VTK and HDF5/Xdmf output of solution, fault information, and state variables
* Templates for adding your own bulk rheologies, fault constitutive models, and interfacing with a custom seismic velocity model.
* User-friendly computation of static 3-D Green's functions

## Release Notes

See [CHANGES](CHANGES.md) for a complete list of changes for each release.

## Authors

PyLith is continually being improved by a growing, collaborative, and inclusive community. It is primarily developed and maintained by:

* Brad Aagaard, Geologic Hazards Science Center, U.S. Geological Survey, USA <img alt="ORCID iD" src="docs/_static/images/ORCIDiD_icon32x32.png" width="16px"/>[0000-0002-8795-9833](https://orcid.org/0000-0002-8795-9833)
* Matthew Knepley, Computer Science and Engineering, University at Buffalo, USA <img alt="ORCID iD" src="docs/_static/images/ORCIDiD_icon32x32.png" width="16px"/>[0000-0002-2292-0735](https://orcid.org/0000-0002-2292-0735)
* Charles Williams, Tectonophysics, GNS Science, New Zealand <img alt="ORCID iD" src="docs/_static/images/ORCIDiD_icon32x32.png" width="16px"/>[0000-0001-7435-9196](https://orcid.org/0000-0001-7435-9196)

For a more complete list of contributors, refer to the [GitHub contributors](https://github.com/geodynamics/pylith/graphs/contributors).

Please see the User Guide for [acknowledgement and citation](https://pylith.readthedocs.io/en/latest/intro/preface.html#citation) information.