Hello,
I am trying to model a pre-curved Nitinol needle being retracted and deployed through a steel cannula. I am having issues with noise in my reaction force readings, yet when I reduce the mass scaling the system behaves very erratically, folding in half and crumpling.
Any suggestions...
I made an FEA model in Abaqus 6.8 of a pre-curved Nitinol needle being pulled through a hollow steel cannula. I used beam elements to model the Nitinol needle and shell elements for the cannula. I used the Abaqus VUMAT subroutine ABQ_SUPER_ELASTIC_N1D as described in answer 1658 on the SIMULIA...
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...
