Hello, I just started using abaqus couples of days ago, so this could be a very basic question, but I have no way to deal with it even after I spent hours with abaqus manual.
I'm using a user-defined subroutines for hyperelastic material in abaqus (UHYPER). I got a fortran file that defines the strain energy density with some material properties that need to be passed to the subroutine; they are defined as 'a = PROPS(1)', 'b = PROPS(2)', etc., and 'a' and 'b' are used to define U(1), UI(1), etc. in the fortran file. However, I'm wondering where and how can I define the numerical values (constants) of PROPS(1) and PROPS(2). I guess they should be specified outside the fortran file; maybe during creating MATERIALS in Abaqus CAE. In 'Edit Material' window of Abaqus CAE, I can set the 'Number of Property values', which I guess 'Property values' means PROPS(1) or PROPS(2), but not the actual numerical values of them. Can anyone tell me how can I define the values in Abaqus CAE?
Finally, in the fortran file (user-defined subroutine), 'TEMP' is used in defining U(1), UI(1), etc. Again, how and where can I set the numerical values of 'TEMP' in Abaqus CAE?
Thank you!
I am having the same issue,
I am having the same issue, where can I define the constants for my user subroutine in CAE ?
PJ
Not hard
PJ-
When you choose a User Material in CAE, it allows you to add whatever material constants you'd like.
If I use a User Material
If I use a User Material in ABAQUS, it gives me an error that there is no sub-routine supplied.
So my question would be, if I have User Material selected and I define my constants how can I "assign" the subroutine, (I have already selected the subroutine fine in the options under edit job)
about subroutines
density function Ω=A_1 I_1^2+A_2 I_2 ) as follows :--
SUBROUTINE UHYPER
(BI1,BI2,AJ,U,UI1,UI2,UI3,TEMP,NOEL,
1
CMNAME,INCMPFLAG,NUMSTATEV,STATEV,NUMFIELDV,FIELDV ,
2
FIELDVINC,NUMPROPS,PROPS)
C
INCLUDE 'ABA_PARAM.INC'
C
CHARACTER*80
CMNAME
DIMENSION U(2),UI1(3),UI2(6),UI3(6),STATEV(*),FIELDV(*),
2
FIELDVINC(*),PROPS(*) C
C10 = PROPS(1)
C01 = PROPS(2)
D1 =
PROPS(3) C
STATEV(1) = BI1
STATEV(2) = BI2 C
U =
C10*(STATEV(1)-3.)+C01*(STATEV(2)-3.)+((AJ-1.)**2)/D1
UI1(1) =
C10
UI1(2) = C01
UI1(3) = 2./D1*(AJ-1.)
UI2(1) =
0.
UI2(2) = 0.
UI2(3) = 2./D1
UI2(4) = 0.
UI2(5)
= 0.
UI2(6) = 0.
UI3(1) = 0.
UI3(2) = 0.
UI3(3)
= 0.
UI3(4) = 0.
UI3(5) = 0.
UI3(6) = 0.
RETURN
END
while running the job it is showing that the job is aborted
because of compilation error........ I am using ifort-compiler..........
Can
anyone please provide me a uhyper subroutine (of any complementary energy
function ) so that i can test whether am i making mistake in the subroutine
itself or not..........
Can you please say me how to pass the variables (e.g.
-- bi1,bi2,temp,noel,cname) while writing the subroutines ???????