Morfeo/Crack for Abaqus Crack propagation relies on the implementation of the XFEM method available in Abaqus since version 6.10. Morfeo/Crack for Abaqus enhances Abaqus' capability for performing crack propagation simulations in complex geometries. Morfeo/Crack for Abaqus is easily installed as a plugin and can be used directly used from the intuitive user interface of Abaqus/CAE. Morfeo/Crack for Abaqus offers the choice between post-processing the results in Abaqus/CAE as usual or in a freely available post-processor (GMSH), which can accurately render the solution at the crack tip and also easily enable the creation of crack propagation movies. This module allows for a direct Abaqus import.
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Key Features
Problem definition and initial crack positioning in Abaqus/CAE- Automatic Abaqus/Standard execution at each propagation step with an input file updated with the current crack position
- Recovered extended finite element solution in a small area surrounding the crack, called the crack area hereafter
- Improved solution visualization in gmsh with respect to the visualization in Abaqus/CAE
- J-integral computation with the equivalent domain integral method
- Stress intensity factors extraction with the interaction integral method
- Crack representation with the level-set method
- Crack update with the fast marching method
Added Value
Morfeo/Crack for Abaqus extends the XFEM for stationary cracks available to Abaqus users to include fatigue crack propagation. The distinctive features of Morfeo/Crack for Abaqus over Abaqus alone are:
- High precision tailored integration rules at the crack front
- Stress singularity is precisely capture at the crack front
- Stress intensity factors computation accounts for thermal strain, initial stress and crack curvature
- Fatigue propagation law
- Unique algorithms based on the level set method for modeling the propagation of multiple 3D cracks with no limitation on the crack shape
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