The picture above is taken from the user's guide of Marc-Mentat 2021.1 (e022). As you can see from the picture, the cohesive part has the same mesh with top part. How can I create these zero-thickness elements between two sets of elements?
Note: I know how to define geometric and material properties. I just don't know how to create zero-thickness elements.
I believe you want to create a surface mesh from a solid mesh, This can be achieved as follows,
Navigate to Geometry & Mesh tab > Convert
Select convert Faces to Elements
Under selection you can use face flood and pick any one element face of solid mesh to easily pick all element faces and then end selection, you must be able to get a surface mesh identical to solid mesh face.
Later you can translate this layer if you want and assign geometric properties etc..
Thank you for your reply. I used Convert>Faces to Elements to create interface elements and gathered these interface elements in a set. Then assigned geometric (Geometric Properties>New>Interface) and material (Material Properties>New>Finite Stiffness Region>Interface/Cohesive) properties. In job check I received an error (screenshot below) and I couldn't assign element type 192 to interface elements (triangular). Could you please help me about that?
Element 192 is Six-node Three-dimensional Interface Element, Hence you cannot assign triangular elements . Refer to the previous reply from Zhong about extruding the 2D elements by a small thickness. After extruding you should be able to assign element 192.