There are a few types of meshes that you cannot create using the mesh generator in the Mesh module:
Compatible meshes between part instances of the same assembly
Compatibility means that the element faces or element edges of the meshes of adjacent part instances share the same nodes and have the same topology at the common interface. You cannot prescribe mesh compatibility between instances. However, you can use the Merge/Cut tool in the Assembly module to merge multiple instances into a single part instance. You can then create a single compatible mesh from the single part instance. See “Compatible meshes between part instances,” Section 17.11.3, for more information.
Symmetric meshes
You cannot ensure that ABAQUS/CAE will mesh a symmetric part or part instance with a symmetric mesh.