When we are concerned with dynamic response of structure under cracked condition, the friction between the crack surfaces may play an important role in the responses. Thank you in advance for your time and sharing your knowledge.
We use only seam cracks because we are only interested in an exact prediction of the displacment field at the crack tip. XFEM is only a good feature for studies of crack propagation without predetermination of the crack path. Only seam cracks in standard FEM analysis with focused mesh and contour integral cracks deliver good results for the crack tip field. We always use contact models to simulate cracks in the middle of cantilevers to get an idea how the friction influences the crack tip fields. So yes, it works. If your version does not support ist you can also use a symmmetry model where the cracck isin the symmetry plane so that you can specify a friction model for the crack surface.
We use only seam cracks because we are only interested in an exact prediction of the displacment field at the crack tip. XFEM is only a good feature for studies of crack propagation without predetermination of the crack path. Only seam cracks in standard FEM analysis with focused mesh and contour integral cracks deliver good results for the crack tip field. We always use contact models to simulate cracks in the middle of cantilevers to get an idea how the friction influences the crack tip fields. So yes, it works. If your version does not support ist you can also use a symmmetry model where the cracck isin the symmetry plane so that you can specify a friction model for the crack surface.
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