Welcome to pycbg’s documentation!

This module helps configuring MPM simulations for CB-Geo MPM: a simple python script can generate the input files required by CB-Geo (see Preprocessing). The results of the simulation can also be imported in python using pycbg (see Postprocessing). This documentation should be used alongside CB-Geo’s documentation.

Preprocessing

Preprocessing a MPM simulation for CB-Geo consist in creating several input files :

  • a mesh file, where the positions of all nodes and their interconnections are described. Pycbg saves it under the name mesh.msh. Can be created using the Mesh object.

  • a particles file, where the initial positions of all material points are specified. Pycbg saves it under the name particles.txt. Can be created using the Particles object.

  • an entity sets file (if entity sets are defined), where all entity sets are defined using entities’ ids. An entity can be a node, a particle or a cell. Pycbg saves it under the name entity_sets.txt. Can be created using the EntitySets object.

The Simulation object creates Mesh, Particles, Materials and EntitySets objects and should be enough to prepare a simulation.

Classes overview

Mesh

Create and write to a file a mesh using gmsh.

Particles

Create and write to a file particles from a Mesh object.

EntitySets

Create and write to a file entity sets for nodes and particles.

Materials

Create materials for particle sets.

Simulation

Create a simulation.

Postprocessing

TODO: explain postprocessing here

ResultsReader

Load the result of a simulation.

Indices and tables