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Error in LS-Dyna UMAT

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Posts: 16
Topic starter
(@Poshman)
Active Member
Joined: 8 years ago

Dear all,

I (finally !!) sucessfully compiled an UMAT for LS-Dyna and copied the executable inside the folder where the input file is present but LS-Dyna displays the following warning message

Warning Default mat41 is used Please check user material library

However the simulation proceeds somehow. I tried adding some write(*,*) statements to debug but those messages are not displayed.

I even tried running the simulation without the executable then again the same error message is displayed. Whats happening and am totally lost !

Thanks

Priya

IIT

India

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Posts: 3998
(@jorgen)
Member
Joined: 5 years ago

I suspect that your subroutine is not actually called. Did you inclue your UMAT correctly in the source tree?

-Jorgen

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Posts: 2
(@ricknieves37)
New Member
Joined: 12 years ago

I too am having the same problem. Instead, my case am getting a warning Default mat43 is used

However, i thought since i coded in umat43, the message shows so.

I even simplified my UMAT to a very simple elastic one and used write statement to print the input variables.. However, no use 🙁

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