FEAP User Forum

FEAP => Programming => Topic started by: amazonon on December 13, 2016, 05:02:22 PM

Title: built in MATErial property with elmtnn
Post by: amazonon on December 13, 2016, 05:02:22 PM

Below is the normal MATErial input.................

MATErial,1
   solid
   finite
   ELAStic isotropic 11000.0 0.1


But, additionally, I would like to use elmtnn. so I changed above code to below..
MATErial,1
        user 01
        solid
   finite
   ELAStic isotropic 11000.0 0.1

I mean, I added USER 01, but its not working. FEAP does not read "ELAStic isotropic 11000.0 0.1"
Is there any way to use both of them?
I am using feap8.4

Title: Re: built in MATErial property with elmtnn
Post by: Yaakov on December 14, 2016, 01:29:55 AM

in user element, you didn't call inmate() to get input parameters...

example: shell3d.f

other ways: use tinput.f, input format is difference.
 or see feap theory manual, thermal element

compare with other solvers (Code Aster or Freefem ++ etc.) FEAP provide a relative simple & comfortable way for users to write own subroutine.

Title: Re: built in MATErial property with elmtnn
Post by: amazonon on December 14, 2016, 08:14:43 AM

Thanks for ur reply
but it's a bit difficult to understand
could you upload any elmtnn.f files?

Title: Re: built in MATErial property with elmtnn
Post by: Yaakov on December 14, 2016, 08:24:20 AM

please see feap theory manual p. 130

or: http://www.ce.berkeley.edu/~sanjay/FEAP/lysmer.html (Prof. Govindjee)

or: ADDITIONAL ELEMENTS FOR FEAP Ver 7.3 to 8.4 (http://www.ce.berkeley.edu/projects/feap/)

I think, It should be enough for a beginner, Abaqus Subroutine Manual 6.14  gives only thermal user element.