The simplest model to run your UMAT

If you need linear elastic or Mises plastic UMAT and related CAE models please visit this link:
www.engssoft.c...
This video explains how to run your UMAT subroutine for the first time. In this video you can find out:
How to call UMAT subroutine from GUI?
How to enter material constants in GUI?
What is props and nprops?
How to define the size of solution dependent stat variables?
How to use element deletion when we are using VUMAT?
How we can introduce the UMAT address to a job?
What is depvar?

[@rybread5718]

Very simple and easy to follow along! Thank you!

[@debbygu3074]

This tutorial is very useful! I have learned about how to use umat in ABAQUS. Many thanks!

[@jojodimirtov]

Hi, thank you for the tutorial. I have a question about the Datum of the Model. Is there a way to change the position of the coordinate system to be in middle center of the part?

[@engineering_software]

Thanks, in part module you can draw the part in your desired position from the beginning. In assembly module you can transfer the part to your desired position.

[@user-qn8xv9ot7t]

When using the UMAT subroutine related to elastic-plastic constitutive, the analysis step is dynamically implicit or statically universal？

[@engineering_software]

Both of them are possible

[@LivYi]

Thank you for the very nice tutorial. Would you mind sharing the UMAT file or telling us where we can find it? Thank you in advance.

[@engineering_software]

Please check the next video: ruclips.net/video/po3ryHcQiFM/видео.html
I have also sent the code for your email.

[@LivYi]

@@engineering_software Thank you very much. I've always got this "Job Job-1 aborted due to errors." when I run the model with Umat. Do I miss something?

[@engineering_software]

Please check the following:
Does your CAE model work well with available materials e.g. linear elastic material of Abaqus. If so the problem is not from your CAE model and check that:
You have installed required software correctly.
Your subroutine has no problem.

[@pierretizemha899]

Dear Sir,
Thanks for this video. I will be pleased if you can provide me with UAMP Subroutines.
Takns in advance !!!

[@engineering_software]

Please send us an email about details of your request.
[e-mail]

[@kklee800]

can you share UMAT subroutine? That will help in trying it out

[@engineering_software]

Please send us an email.

[@vikkyvikram3202]

hello sir, when testing a single element how much displacement has to be applied. suppose i am taking a element of 0.5 mm x0.5 mm x 0.5 mm how much displacement has to be applied.

[@engineering_software]

It is better to start from small strain to check your UMAT for the first time i. e. strain = 0.01. In continue after initial checking the UMAT, if you want to model plastic or damage of the material you should apply strain based on the tensile test results of the material. In some cases strain is a few percent but in some cases even more than 100%.

[@stanzinnorboo7083]

I am getting "there is zero force everywhere in the model" the model is not converging. what might cause the error?

[@engineering_software]

Please check your model by using simple elastic material of the software. If your problem was solved the problem is your UMAT.

[@stanzinnorboo7083]

It is working for other material, the problem is in GOH model UMAT, I checked everything from my side, I couldn't figure out the problem. Will you please check it ? I will send you my umat file if you agree.@@engineering_software

[@engineering_software]

What do you mean by GOH?

[@stanzinnorboo7083]

@@engineering_software Gasser Ogden Holzapfel material

[@izzetsarkaya929]

Thanks for the video. Can u send me Umat Code please?

[@karimmosli8637]

Hello sir can you give this code