Hi all,

I'm trying to model a 2D cohesive layer with a zero-thickness in Abaqus (6.11.2)
The shape of the layer is a quarter circle.

When modelling this i first create a cohesive layer with a certain thickness.
I then convert the part of this cohesive layer to a orphan mesh, then edit the mesh, such that a zero thickness layer is created.

However when i want to submit the job i get the following error message:

Error in job XX: THE NODE NUMBERING MIGHT NOT BE CORRECT FOR ELEMENT YY INSTANCE ZZ

This error is given only for a certain number of elements, the other elements seem to work just fine.
How can i resolve this error? When chechking the elements with the error message, they seem to be numbered just fine and exactly the same as the other element that do not generate this error message.

Also when deleting the elements where the error is occuring for, the simulation runs just fine.

I added an .inp file where this error occurs for me:

https://dl.dropbox.com/u/21539688/FE-QM-Elem-COARSE-01b5.inp