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FORTRAN subroutine to define a simple 3D element

FORTRAN subroutine to define a simple 3D element

FORTRAN subroutine to define a simple 3D element

(OP)
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  
 

RE: FORTRAN subroutine to define a simple 3D element

and get a hold of the first book.

RE: FORTRAN subroutine to define a simple 3D element

(OP)
Thanks loki3000.
 

RE: FORTRAN subroutine to define a simple 3D element

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++.

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