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# Off-axis 2D user element library for Abaqus
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Here you can find a collection of abaqus user element made for a off-axis 2D models which are used currently are used for modelling off-axis cracks in a laminate.

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The current elements is:
- OA2DT3: Linear triangle element (3 nodes)
- OA2DT6: Quadratic triangle element (6 nodes)
- OA2DQ4: Linear quad element (4 nodes)
- OA2DQ8: Quadratic quad element (8 nodes)

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# References
If used please make refererence to at least one of the following publications:

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[1] Mikkelsen, L.P., Herrmann, L., Christensen, M.M., Legarth, B.N., Niordson, C.F., A special finite element method applied to tunnel cracking in laminates, Under preparation.
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[2] Herrmann, L., Mikkelsen, L.P., Legarth, B.N., Niordson, C.F., The influence of the fibre-microstructure on off-axis tunnel cracking in laminates, Under preparation.
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A selection of python scripts and the user-element used for reference 1 is collected in folder Ref1Scripts.