BethanyL
Mechanical
- Jan 14, 2011
- 3
I am trying to model a pre-curved Nitinol needle using beam elements in Abaqus Explicit. I am getting the following warning message:
"For 14 beam elements either the average curvature about the local 1-direction differs by more than 0.1 degrees per unit length as compared to the default curvature or the approximate integrated curvature for the entire beam differs by more than 5 degrees as compared to the approximate integrated default curvature. This may be due to a user-specified normal or due to the nodal averaging routine used by Abaqus. This difference may cause unexpected behavior of the beam and you may want to verify that the beam normals are correct for your problem. The elements have been identified in element set WarnBeamCurvature1."
I believe the problem is that initial beam curvature is not taken into account in Abaqus/Explicit, but I'm not sure and if this is the case I don't know how to fix it.
Help would be greatly appreciated.
"For 14 beam elements either the average curvature about the local 1-direction differs by more than 0.1 degrees per unit length as compared to the default curvature or the approximate integrated curvature for the entire beam differs by more than 5 degrees as compared to the approximate integrated default curvature. This may be due to a user-specified normal or due to the nodal averaging routine used by Abaqus. This difference may cause unexpected behavior of the beam and you may want to verify that the beam normals are correct for your problem. The elements have been identified in element set WarnBeamCurvature1."
I believe the problem is that initial beam curvature is not taken into account in Abaqus/Explicit, but I'm not sure and if this is the case I don't know how to fix it.
Help would be greatly appreciated.