FORTRAN subroutine to define a simple 3D element

[ab110]

Hi everyone,

I want to write a subroutine in FORTRAN to define a new element type. For the first step, I want to write a subroutine to define a simple 8-node brick element. Does anyone have a FORTRAN code for solid element so that I can get some idea about how to write a FORTRAN subroutine for 3D elements? I am new with FORTRAN and I appreciate if somebody please upload a subroutine for a simple 3D element or let me know how can I find that? By looking at this code, I want to get some idea about how to define stiffness matrix and… in FORTRAN.

C,
A

 

[loki3000]

check here (matlab & mathematica code, but you'll be able to convert it to fortran)

http://bcs.wiley.com/he-bcs/Books?action=index&itemId=0471648086&bcsId=2256

and here (advanced examples, but fortran code)

http://bcs.wiley.com/he-bcs/Books?action=index&itemId=0471648078&bcsId=3105

 

[loki3000]

and get a hold of the first book.

 

[ab110]

Thanks loki3000.

 

[loki3000]

also take a look at Calculix, it shares a lot of similarities to Abaqus (among them are the elements) and their formulation is similar (and it has support for UEL, which are similar to abq).

http://www.calculix.de

is the webpage i think. i am not sure though if it's written in fortran or c++.