https://github.com/caeassistant-group/umat-abaqus-isotropic-elasticity-isothermal-suboutine

The UMAT subroutine in Abaqus serves as a solution for modeling materials that cannot be accurately represented using the standard Abaqus material library. For this project, we utilized this subroutine to study a 3D isotropic isothermal beam. Additional projects in this field can also be accessed on the following link.
https://github.com/caeassistant-group/umat-abaqus-isotropic-elasticity-isothermal-suboutine

abaqus abaqus-input-file caeassistant fem finite-element-analysis finite-element-method finite-elements fortran simulation subroutine umat

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The UMAT subroutine in Abaqus serves as a solution for modeling materials that cannot be accurately represented using the standard Abaqus material library. For this project, we utilized this subroutine to study a 3D isotropic isothermal beam. Additional projects in this field can also be accessed on the following link.

• Host: GitHub
• URL: https://github.com/caeassistant-group/umat-abaqus-isotropic-elasticity-isothermal-suboutine
• Owner: CAEAssistant-Group
• License: mit
• Created: 2025-01-21T14:09:02.000Z (25 days ago)
• Default Branch: main
• Last Pushed: 2025-01-23T10:32:23.000Z (23 days ago)
• Last Synced: 2025-01-23T10:34:12.771Z (23 days ago)
• Topics: abaqus, abaqus-input-file, caeassistant, fem, finite-element-analysis, finite-element-method, finite-elements, fortran, simulation, subroutine, umat
• Language: Fortran
• Homepage: https://caeassistant.com/product/umat-subroutine-vumat-subroutine-1/
• Size: 1.67 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# UMAT-Abaqus-Suboutine

The UMAT subroutine in Abaqus serves as a solution for modeling materials that cannot be accurately represented using the standard Abaqus material library. For this project, we utilized this subroutine to study a 3D isotropic isothermal beam. 

The problem, as shown in the figure, involves a 3D anisotropic isothermal beam. We analyzed it once using Abaqus's built-in material model and again using the UMAT Abaqus subroutine, comparing the stress patterns. The results matched exactly.

![isot](https://github.com/user-attachments/assets/5da23bf6-7088-4d54-bb64-07dcbeb6ee02)

Additionally, we’ve made all modeling files and a training video on UMAT and related workshops available on our website for download.

![package-2](https://github.com/user-attachments/assets/44f887d9-a050-4834-b729-511a6ee6fe19)

There’s also a free PDF offering a comprehensive explanation of the UMAT subroutine and workshops, which we highly recommend.

![PDF](https://github.com/user-attachments/assets/361139f9-77e4-402e-b630-5ae20a160310)