FEAP User Forum

FEAP => Input File Issues => Topic started by: Enginit on November 26, 2020, 08:33:56 AM

Title: Shear on plate element
Post by: Enginit on November 26, 2020, 08:33:56 AM

Hi all,
I am using FEAP v8.4 and simulate a simple plate problem as the input file.
When I export the plate shear force, all are zero. I think I may make a wrong input file.
I tried to read the manual and examples but there is no hint showing how to turn on shear in the plate.
Any suggestion would be really appreciated.
Best regards

Title: Re: Shear on plate element
Post by: Prof. S. Govindjee on November 26, 2020, 01:16:02 PM

I reproduced the error.  We'll have a look and get back to you with the fix.

Title: Re: Shear on plate element
Post by: Prof. R.L. Taylor on November 26, 2020, 02:14:39 PM

There is an error in subroutine ./elements/plate2t.f around line 347  the statements read:

          tt(1) =  hh(1,1)*gamm(1) + hh(1,2)*gamm(2)
          tt(2) =  hh(2,1)*gamm(1) + hh(2,2)*gamm(2)

they should read
          tt(4) =  hh(1,1)*gamm(1) + hh(1,2)*gamm(2)
          tt(5) =  hh(2,1)*gamm(1) + hh(2,2)*gamm(2)

This occurs in ver8.4, ver8.5, ver8.6.  It does not occur for the quadrilateral element.

The interpolation for element shear values may not be very accurate

Title: Re: Shear on plate element
Post by: Enginit on November 27, 2020, 05:23:48 AM

Dear Prof. Taylor and Prof. Govindjee,
Thank you for your kind support.
I tried with Prof. Taylor's comment and now there are some shear values now.
Best regards,