Current development areas for Zencrack include:
- Mixed hex and tet re-meshing for crack insertion into an uncracked mesh.
- Implementation of a non-linear Kujawski-Ellyin crack growth law.
- Ref: M.Lepore, F.Berto, D.Kujawski, Non-linear models for assessing the fatigue crack behaviour under cyclic biaxial loading in a cruciform specimen, Theoretical and Applied Fracture Mechanics, Volume 100, 14-26, April 2019.
- Implementation of crack growth direction from stress intensity factors based on the work of Richard et al.
- Ref: H.A.Richard, M.Fulland, M.Sander, Theoretical crack path prediction, Fatigue Fract Engng Mater Struct 28, 3-12, 2005.
- Extension of the processing available for interaction integrals to allow them to be used to drive a crack growth analysis.
- Support for the Ansys option for specifying the auxiliary field solution when calculating interaction integrals: mixed, plane stress or plane strain.
- Re-working of some of the options on the *ENERGY RELEASE RATE keyword to accommodate some of the above changes and to allow future additions.
- Creation of an output set of crack-blocks that are "ready to transfer".
Current development areas for the Zencrack GUI include:
- Improved performance for large medhes (faster import and manipulation).
- Import and optional display of the material regions defined in a mesh.
- Identification of disconnected mesh regions.
- Labelling of profiles when displaying crack growth profile results.
- Labelling of splines (Input Tab crack front splines and Display Tab splines).
- Ability to add multiple meshes into one viewport.
- Ability to display some types of surface definitions.
- Re-working of the Energy Release Rate screen to accommodate the changes described above.
- New input and preview options to support mixed hex and tet re-meshing for crack insertion into an uncracked mesh.
Definition of elliptic crack position plus ring preview
Ring elements and crack front node position preview
Placement of crack into a specific region
Preview of crack front nodes; crack in a specifed region
Connecting rod, crack definition and remeshed region
Bracket, crack definition and remeshed region