A simple example for UMAT subroutine in Abaqus

Categories: Abaqus, Course, Engineering files, Fortran, Subroutine, UMAT

Engineering Downloads

Reza Tangestani

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What is Abaqus and how user subroutines expand its capabilities
The difference between UMAT and USDFLD subroutines in material modeling
When to use UMAT for stress response and damage definitions
Basic structure and purpose of the UMAT subroutine in Abaqus
Introduction to continuum mechanics concepts like the 4th-order elasticity tensor
How to simulate a tensile test with elastic material using UMAT
Implementing Von Mises yield criteria in a custom subroutine
How to run UMAT in Abaqus and view results in the output database (ODB)

About Course

Product Overview:

The UMAT subroutine in Abaqus is one of the most powerful tools for customizing material behavior in finite element simulations. Before diving into advanced applications, it’s essential to understand the basics of Abaqus, what subroutines are, and how UMAT fits into defining stress-strain responses.

This beginner-friendly tutorial provides a clear introduction to the UMAT subroutine through a simple tensile test model. You’ll learn the core concept of using UMAT—not just to define material properties, but to control how materials respond to loadings using stress-based criteria like Von Mises. This video is ideal for those starting out with UMAT or looking for a practical example to build upon.