FEAP User Forum

FEAP => nurbFEAP => Topic started by: azkia on February 19, 2016, 12:36:11 AM

Title: elmt43 (DSG)
Post by: azkia on February 19, 2016, 12:36:11 AM

Dear all,

whether the element 43 can be used for plate case??
I try to do in the case of 2-dimensional input as described in the manual feap 8.4 with element 43, but feap not want to work, what should I do???

Thanks

Title: Re: elmt43 (DSG)
Post by: OrangeDays on February 19, 2016, 03:36:31 AM

Hi,
I recommend you to post your input file.
I am afraid you are referring a wrong manual to define the problem. The definition of the geometry is a bit different in NURBFEAP from that in a standard FEAP input. There must be an IGA manual for you to follow.
BR, Ying

Title: Re: elmt43 (DSG)
Post by: Prof. R.L. Taylor on February 19, 2016, 07:57:37 AM

The DSG element is a straight simple beam element -- it does not do plates.

Title: Re: elmt43 (DSG)
Post by: azkia on February 21, 2016, 05:26:28 AM

To OrangeDays..

I've tried using manual IGA but still does not work.. And i attach input too..
Thanks for your attention..

Title: Re: elmt43 (DSG)
Post by: azkia on February 21, 2016, 05:40:06 AM

To Prof. R. L. Taylor

what kind of elements can be used to plates, Prof??
now, i'm working on my thesis. i take the topic of isogeometric for plates with FEAP. but i'm confused what elements can be used to plate in FEAP..
Thank you for your attention Prof..

Title: Re: elmt43 (DSG)
Post by: Prof. R.L. Taylor on February 21, 2016, 06:33:06 AM

Maybe elmt05.f or the shell element will do what you want.  But the nurbfeap elements are only frameworks for you to do additional development.  The DSG element in particular is not an element you should try to use without additional developments.

Title: Re: elmt43 (DSG)
Post by: OrangeDays on February 21, 2016, 10:26:39 AM

Hi,
I have looked at your input file and slightly modified the way it gives the material parameters. Since it is a frame element, you should input it as frame element inputs.
This time it gives the results. I have not checked the results if they reasonable though...
But as Prof. Taylor says, they will not really help you with the shell elements. They are just straight frames.

BR, Ying

Title: Re: elmt43 (DSG)
Post by: azkia on February 21, 2016, 09:45:51 PM

To Prof. R. L. Taylor..

Thank you so much for your help, Prof..

Title: Re: elmt43 (DSG)
Post by: azkia on February 21, 2016, 09:48:39 PM

To OrangeDays..

Thankyou for correcting input. i will try with another case..