With scripts

« Bloc Fissure » has a script mode which is very close to the GUI, in the sense that the same information is needed as input.This documentation aims at giving an example and explains how to generate a cracked mesh using a python script calling « Bloc Fissure » functions. There are several others functions available in « Bloc Fissure » but they are not documented in this documentation.

The main command of « Bloc Fissure » is the casStandard function. It has a single argument which is a python dictionary with the following keys. All are mandatory parameters except those marked by /.

Script parameters
/ nomCas	[string, default=’casStandard’]	Name of the problem
maillageSain	[string]	Absolute address of the input structure 3D mesh in MED format
BrepFaceFissure	[string]	Absolute address of the input crack geometry in BREP format
edgeFissIds	[list of integers]	List of edges number which define the crack front
meshBrep	[list of 2 floats]	List of two floats defining respectively minimum and maximum size of elements of the crack mesh
lgInfluence	[float]	Length of influence - distance that defines the size of the extracted Box around the crack
rayonPipe	[float]	Radius of the tore around the front
/ lenSegPipe	[float, default=rayonPipe]	Length of the segments of the tore along crack front
nbSegRad	[integer]	Number of radial segment of the tore
nbSegCercle	[integer]	Number of sectors of the tore
areteFaceFissure	[float]	Mesh size of elements for the Box remeshing

Geometrical parameters of the tore are illustrated :

Different levels of verbose are available. Use one of this 4 optional functions to set verbose type:

• / setDebug()
• / setVerbose()
• / setRelease()
• / setUnitTests()

example to run in salome session:

from blocFissure import gmu
from blocFissure.gmu import initLog
initLog.setDebug()

from blocFissure.casStandard import casStandard

dicoParams = dict(nomCas            = 'cubeFiss',
                  maillageSain      = "/home/A123456/BF/cube.med",
                  brepFaceFissure   = "/home/A123456/BF/fiss.brep",
                  edgeFissIds       = [4],
                  lgInfluence       = 20.,
                  meshBrep          = (5.,10.),
                  rayonPipe         = 5.,
                  lenSegPipe        = 5,
                  nbSegRad          = 5,
                  nbSegCercle       = 32,
                  areteFaceFissure  = 5)

execInstance = casStandard(dicoParams)