Tunneling cracks in arbitrary oriented off-axis lamina

Abaqus models behind the results in the reference

Mikkelsen, L.P., Klitgaard, S.J., Niordson, C.F., and Sørensen, B.F., Tunneling cracks in arbitrary oriented off-axis lamina. Int. J. of Fracture, 226, 161-179, https://doi.org/10.1007/s10704-020-00485-9,  2020.

to which a reference should be given.

The Abaqus models is saved as cae and corresponding jnl files. Here, Dxx indicate the layup angle, J is the J-integral model wile KJ is the model used both for J and stress intensity factor determination where there are added a thin layer between the crack and the neighboring 0-degree ply. The Umodel is the model used for the energy balance method. The ModelA is the half-width crack, ModelB is full-width crack for large angles and ModelC is full-width crack for small angles

The PreProc...py file is for pre-processing of the Abaqus model, here for changing the angle of the ply and the crack

The PostProc...py files is for post-processing of data from the Abaqus model saved as an odb-file. The Post-processing is for the analysis type indicated by the ModelA, B and/or C. The 61 or 93 indicate two different version with less or more elements through the thickness (number of nodes in the thickness direction). 

The Plot...py and Matlab files is for plotting some of the graph shown in the paper based on the output-files coming from the PostProc...py scripts. 

The ClassicLaminate zipped folder have the Matlab files for the Classical laminate theory. 

The Fig...zipped folders are the Matlab / Python files and the output rpt files required for making the plots shown in the paper.