PyLith

Build status

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

Main page: https://geodynamics.org/cig/software/pylith
- User Manual
- Binary packages
- Utility to build PyLith and all of its dependencies from source
PyLith Wiki: https://wiki.geodynamics.org/software:pylith:start
- Archive of online tutorials
- Hints, tips, tricks, etc
- PyLith development plan
Submit bug reports via https://github.com/geodynamics/pylith/issues
Send all questions to: cig-short@geodynamics.org

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

See CHANGES for a complete list of changes for each release.