Learning Forum

[landins]

Hi, I posted my question at Stack Exchange before, but got no answers yet:

 

https://engineering.stackexchange.com/questions/18865/what-is-the-meaning-of-repetitive-node-indices-and-the-0th-node-from-an-ansys-el

 

Could you help me? 

 

This element list file is not generated by me. Most lines are OK, but I can't understand some of them.

 

The initial lines are like this:

 

 

 LIST ALL SELECTED ELEMENTS.  (LIST NODES)

 

 ***** ANSYS - ENGINEERING ANALYSIS SYSTEM  RELEASE 15.0      *****

 ANSYS Multiphysics                                

 00207328          VERSION=WINDOWS x64   148:49  JUL 14, 2015 CP=      8.705

 

  200           

 

 

                                                             

 I find some confusing lines as follows. One example is this: 

 

 

 

    ELEM MAT TYP REL ESY SEC TSHA       NODES

 

   93330   1   1   1   0   1       216828  134951  134975  134975  134942  134942  134942  134942

                                    217733       0  134975  217734  134942  134942  134942  134942

                                    217735  134818  134820  134820

 

 

Is it a 20-node hexahedron element?

Nodes like '134942' appear multiple times. What does that mean?

What does the index '0' mean? I don't have the 0th node in my node list file. 

Another example is like this:

 

 

    ELEM MAT TYP REL ESY SEC TSHA       NODES

 

  107468   1  13   8   0   1 QUA8   21597   21599    8899    8901   21598    8892    8900    8893

 

 

and this: 

 

 

 

   53885   4   4   4   0   4 TRI6      10      11    1436    1436    5267    5275    1436    5271

 

 

 QUA8 is OK to me, but why TRI6 have 8 node indices (with two repetitive indices)? What does that mean?