Abaqus-Isight

vikram manoj · Jun 13, 2025

Hi all,

I am analyzing low-velocity impact on composite materials and performing reliability analysis by varying the elastic and strength properties of the laminate as random variables. I am using a VUMAT subroutine in Abaqus. However, when I load the input file into Abaqus Isight, the material properties defined under User Material are not visible for parameterization. How can I resolve this?. Additionally, during execution, I use the following command: "abaqus.bat input=second job=second user=impact.f interactive" but it results in an error. What is the correct way to run this analysis?. Please help me address these two issues.

Thanking you
N.Vikram manoj kumar

FEA way · Jun 13, 2025

What version of Isight are you using ?

If you have access to Dassault Systemes Knowledge Base, check the article "Running Abaqus jobs with user subroutines in Isight".

vikram manoj said:
but it results in an error

What is the error message ?

vikram manoj · Jun 13, 2025

FEA way said:
What version of Isight are you using ?

If you have access to Dassault Systemes Knowledge Base, check the article "Running Abaqus jobs with user subroutines in Isight".

What is the error message ?

it says The following file(s) could not be located: impact.f.

snow83 · Friday at 12:07 PM

vikram manoj said:
it says The following file(s) could not be located: impact.f.

probably you will have to define your subroutine file in isight and tell isight that it should be copied to the execution directory. MAybe you want to check the files settings in the abaqus module in isght

FEA way · Friday at 1:11 PM

Try these steps (based on the aforementioned KB article):

1. Add the subroutine file as Input files parameter in the Abaqus component.
2. Enable the Fixed file name checkbox and specify the Fortran file name in the Destination section.
3. Add the user command to the Abaqus command.
4. Make sure Isight can find the Fortran compiler. To do this, you can provide the compiler path in the abaqus.bat file:

Code:

@echo off
call "compiler_batch_path"
"abaqus_batch_path" %*

snow83 · Saturday at 12:14 PM

Another (quite brute method) if it really is only the fortran file it cannot find:
- copy your file impact.f to e.g. C:\subroutines
- change your abaqus command accordingly "abaqus.bat ... user=C:\subroutines\impact.f ...."

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Abaqus-Isight

vikram manoj

Student

FEA way

Mechanical

vikram manoj

Student

snow83

Materials

FEA way

Mechanical

snow83

Materials

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