The two pictures above are the undeformed and deformed shapes for this simple ENF (Endge Notched Flexure) model.  The origins of this model are the WS4 DCB problem from the Composites class.  I took that DCB model and modified the Abaqus .inp file.   The red line in the above two images is the adhesive layer.  The model is pinned at the lower right corner and simply supported at the lower left corner.  There is an applied downward displacement at the upper center.  This model is made up of 1600 CPE4I elements and 280 COH2D4 elements. The material model is the same as WS4. The geometry is the same as the WS4 model.

The RF2 response is shown below for two runs with different max delta t's.  

Time is set equal to the applied displacement in mm.

The zip file below contains two Abaqus input files and the resulting files from each run.  Run times were 79 secs and 116 secs on my laptop (1 cpu).

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