|May 10, 2013, 01:27||
Nanotube FE modeling - resultant value much lower than expected
Join Date: May 2013
Posts: 1Rep Power: 0
I am trying to perform FEM of CNTs using ansys. I have come across several papers regarding this and have followed the instructions. However, the resultant value of the young's modulus that I am getting is much lower than expected ( ~400GPa instead of ~1TPa) I first made the structure using keypoints and lines. Then i defined the elements (Beam188) and its properties (elastic modulus and poisson's ratio). each element corresponds to a single carbon-carbon bond. i also defined the crossectional properties for the elements. Then i meshed the structure and constrained all DOFs at the bottom and applied a force at the top.
Is there something wrong with the procedure being followed?
also, I am using beam188 instead of beam4 (which is used in the papers) as ansys 14 doesnt support beam4. Can this be the reason for the erronious results?
|Thread||Thread Starter||Forum||Replies||Last Post|
|error compiling modified applications||yvyan||OpenFOAM Programming & Development||21||March 1, 2016 05:53|
|ParaView for OF-1.6-ext||Chrisi1984||OpenFOAM Installation||0||December 31, 2010 07:42|
|POSDAT problem||piotka||STAR-CD||4||June 12, 2009 08:43|
|wmake compiling Problem with OF1.5||openTom||OpenFOAM Installation||4||May 3, 2009 14:44|
|DecomposePar links against liblamso0 with OpenMPI||jens_klostermann||OpenFOAM Bugs||11||June 28, 2007 17:51|