Patran Duplicating all Elements "alone"??!!

[sergio111]

Hello Everyone ...

I am not an expert in Patran, I have a problem that I cannot find ... not even my collegues that are experts in Patran know the answer...


I have a model with like 30.000 elements...
I used Laminate Modeler and give properties for my Quad elements...

I have also Hexa elements. I gave them a property.

My structure is a sandwish structure with honeycomb.

The problems is that "sometimes" and really soooooomtimes.. I have all the same elements but duplicated...

The error is perhaps from me ... I really don't know what is happening...

When I open with the Laminate MOdeler my Layup file, Patran is giving an error that the layup file and the elements in the model aren't the same... he is giving me an advice to do another time a layupfile in a new database...

But I didn't changed anything in my elements..
I don't anderstand...
Is it when I am opening this layup, and I click YES..
he is creating the same elements but adapted to the plies and the Layup..???!!!

is this the problem?

Perhaps I am nt clear in my question, please post on the forum if you need more information to understand my question and my case.

Thanks for your answers and replies...

 

[sergio111]

As I see... there is no one replying ... thanks

 

[sergio111]

wo

http://wwwwwwwwww..

what a great website... thanks for everybod's help

 

[40818]

Please dont take offence with my remarks i will make.

In the 11 days that you waited for an answer to appear form eng-tips, did you sit down and think about your model and run checks toensure its stability. The forum isn't some magic bible of answers, but a place where questions can be raised and debated, there are many shades of grey, not always black and white.
Your main problem seems to be your attitude if i may be so bold.

Notwithstanding this,

Do simple fault finding approaches to locate what the specific problem is in your model. Your question seems a bit vague. Sometimes its best to take a step back form the model and think for a bit. Do some hand calcs to define reality and then ensure a simple model reflects this. Then build up your model to what you want to analyse in teh knowledge that it is stable and gives good correlation with test/calculated results.