Hi all,
I was trying to modeling the crack propagation of three-points bending specimen.But a weird thing happened when the specimen was under loading. A very small number of elements were distorted excessively in the specimen(I don't think it is the problem of elements because all elements...
Hi Bartosz,
Did the STATEV(1) and STATEV(2) have a value at each increment in your subroutine? I did as what you said and added "*FIELD, USER, VARIABLE=2" there:
** STEP: Step-1
**
*Step, name=Step-1, nlgeom=NO
*Heat Transfer, end=PERIOD, deltmx=5.
1., 250., 0.0025, 5.,
**
[highlight...
Hi,Bartosz
Sorry for replying late.I double check the codes and simplify the model to see what is going on with that.This time,I replace UMATHT subroutine with HETVAL and make a very simple codes like this:
SUBROUTINE USDFLD(FIELD,STATEV,PNEWDT,DIRECT,T,CELENT,
1...
Hi,João
Based on your problem,I think you can set the degree of cure and its rate as two field variables and save the two field varibales(Field()) into Statev().Both of that can be done in USDFLD subroutine.Next,in the HETVAL subroutine,you can make some variables dependent on degree of cure...
Hi,Bartosz
Here is my subroutine and input file,thank you so much for your help
Regards,
Gehttp://files.engineering.com/getfile.aspx?folder=3682a852-1bb9-46ab-b6db-7f0f1117f231&file=finalseven.for
Hi,Bartosz
Thank you for your help.I double check the input file and both the *USER DEFINED FIELD and *DEPVAR are there.I used the codes you showed me to check whether the USDFLD is called or not.And it turns out that all the subroutines are called by ABAQUS.So I think the real problem lies in...
Dear members:
I was trying to model the distribution of the temperature and degree of cure for a material. And as you can see from my codes,I used field(1) for the temperature and Fiedl(2) for the degree of cure,and each of them were stored in Statev(1) and Statev(2) respectively.But what...
