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Morfeo/Crack for Abaqus

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.

Check out an in-depth Webinar we recently conducted highlighting Morfeo

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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