Hi Everyone,

In Abaqus/CAE, if there are few elements in the borderline of failure (example: elements with volume in order of 1e-6) and if ‘Verify Mesh’ tool is used to check quality and verify the mesh, the verification process doesn’t report any elements that will fail in the analysis. But if the job is submitted for analysis, the datacheck phase aborts with an error that few elements has zero or negative volume.

The reason behind this behavior- Abaqus/CAE uses single precision for nodal coordinates and is passed to Abaqus/Pre as double precision array. Because of this change in precision and roundoff, and the elements are in borderline pass/fail, the elements that passed in ‘Verify Mesh’ tool of Abaqus/CAE failed in Abaqus/Pre.