Axial and Shear Deformation (2D Box)#
The files are in the directory examples/box-2d.
The files and directories for this set of examples includes:
README.md:README file containing a brief description of the various examples.
*.cfg:PyLith parameter files.
*.mesh:Finite-element mesh files generated manually using a text editor.
*.spatialdb:Spatial database filesFiles associated with the spatial databases.
viz:Directory containing ParaView Python scripts and other files for visualizing results.
output:Directory containing simulation output. It is created automatically when running the simulations.
Overview#
This suite of examples demonstrates some basic concepts of using PyLith to solve the static and quasistatic boundary elasticity equation in a 2D box (Fig. 24) with uniform material properties. This example incrementally adds complexity through a series of steps:
- Step 1:
Axial extension with Dirichlet (displacement) boundary conditions.
- Step 2:
Shear deformation with Dirichlet (displacement) boundary conditions.
- Step 3:
Shear deformation with Dirichlet (displacement) and Neumann (traction) boundary conditions.
- Step 4:
Same as Step 2 but with initial conditions equal to the analytical solution.
- Step 5:
Shear deformation with time-dependent Dirichlet (displacement) and Neumann (traction) boundary conditions.
Fig. 24 Diagram of geometry for 2D box that extends from -6 km to +6 km in the x direction and from -16 km to 0 km in the y direction. We refer to the domain boundaries using the names shown in the diagram.#