Help i am getting the following error message in abaqus
**WARNING: Surf-1 is ambiguously connected at node ###. This surface cannot be used with *CONTACT PAIR. ***ERROR: 1 improperly defined surface(s). Please check your surface definitions. Make sure that all surface normals point outward.
Note:
The mesh is an orphan mesh and is generated outside ABAQUS.
The mesh is fine and has a huge number of elements.
Element typr for the mesh is C3D4
i have defined the surface using ABAQUS CAE and it was generated automatically using the following commands
*elset, elset=surf-1-S1-1
*elset, elset=surf-1-S2-1
*elset, elset=surf-1-S3-1
*elset, elset=surf-1-S4-1
....
*surface,type=element,name=surf-1
surf-1-S1-1,S1
surf-1-S2-1,S2
surf-1-S3-1,S3
surf-1-S4-1,S4
As you will see, i have followed section 2.3.2 Element-based surface definition in abaqus user's guide.
if you read "Creating surface facets by specifying solid, continuum shell, and cohesive element faces" you will see i have followed it.
So what is the issue here?
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