CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Mesh Generation & Pre-Processing Software > ANSA

Triangular elements with 4 nodes?

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 31, 2020, 15:26
Default Triangular elements with 4 nodes?
  #1
New Member
 
Join Date: Oct 2020
Posts: 15
Rep Power: 6
SuperSonicCat is on a distinguished road
Hello forum,


i have generated a triangular shell mesh for a surface. After the output as a LS-Dyna key-file, i noticed that there are 4 nodes per element. How can that be? Triangular elements should have only 3 nodes?
I got an output like this:


*ELEMENT_SHELL
$# eid pid nid1 nid2 nid3 nid4
1 1 23 21 24 24
...


So the nid4 is just the nid3. What am i doing wrong?


Has someone a clue and would help me?


Best regards.
SuperSonicCat is offline   Reply With Quote

Old   January 1, 2021, 06:04
Default
  #2
Member
 
Maries
Join Date: Mar 2010
Location: Coimbatore, India
Posts: 76
Rep Power: 16
rmaries is on a distinguished road
Collapsed cons? Check the geometry once again.
Second order element should have 6 nodes. So this is not second order element. Let us know once you solve this.


Quote:
Originally Posted by SuperSonicCat View Post
Hello forum,


i have generated a triangular shell mesh for a surface. After the output as a LS-Dyna key-file, i noticed that there are 4 nodes per element. How can that be? Triangular elements should have only 3 nodes?
I got an output like this:


*ELEMENT_SHELL
$# eid pid nid1 nid2 nid3 nid4
1 1 23 21 24 24
...


So the nid4 is just the nid3. What am i doing wrong?


Has someone a clue and would help me?


Best regards.
rmaries is offline   Reply With Quote

Reply

Tags
ansa, mesh, triangular


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
3D Windturbine simulation in SU2 k.vimalakanthan SU2 15 October 12, 2023 06:53
[ICEM] icem mesh without tetrahedral or triangular elements Farshad_Noravesh ANSYS Meshing & Geometry 0 March 27, 2014 04:20
F_NNODE returns double number of nodes falkon Fluent UDF and Scheme Programming 0 March 8, 2014 07:58
[ICEM] How to create a uniform triangular mesh with specified number of nodes in ICEM 13.0? bzz77 ANSYS Meshing & Geometry 1 November 5, 2012 15:08
Interpolation (Number of mapped nodes) Sam CFX 3 January 6, 2008 20:51


All times are GMT -4. The time now is 15:59.