Ana Johnson

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Questions related from Ana Johnson

What hardening equation does UMATHT subroutine use in Abaqus?

Hello, I'm using UMATHT user subroutine in Abaqus (FEA) and I'm trying to see what hardening curve it applies. I introduce the hardening exponent, the yield stress and young modulus in the...

23 June 2023 5,163 2 View

How to convert wppm to atoms/m^3 or similar?

Hello, I am struggling when trying to convert 1wppm of H2 into another unit. I've found some information about ppm, but I'm not sure how to do the wppm (weight parts per million I assume)...

02 June 2023 4,282 0 View

How to properly mesh a notched tensile test in Abaqus?

Hello! I'm struggling when meshing a tensile test with a notch. The simulation seems fine at first, but when stretching, the elements on the notch get extremely deformed and the simulation...

24 May 2023 10,053 2 View

How to get results when using linear elements with UMATHTH?

I'm using UMATHTH in Abaqus for hydrogen diffusion on a tensile test. When switching from standard quadratic elements (reduced) to standard linear elements in the mesh module, the following error...

09 March 2023 2,337 0 View

How can I increase the speed of the tensile sample in Abaqus Implicit?

Hello, I'm trying to increase and decrease the speed of a tensile sample I am simulating. The simulation involves UMATHT (hydrogen diffusion) and I am using Abaqus implicit/ Standard. If I...

06 March 2023 9,263 1 View