Welcome @js34654!

You can find comprehensive Exodus documentation on Sandia’s open-source repository for their SEACAS project, which owns the Exodus format. (SEACAS stands for: "**S**andia **E**ngineering **A**nalysis **C**ode **A**ccess **S**ystem)

If you have access to Linux or Mac, you can build the SEACAS project, which will give you access to a few useful utilities utilities to convert Exodus to & from ASCII text (exotxt / txtexo), and to/from Matlab `*.mat`

files ( `exo2mat`

/ `mat2exo`

). There are also extensive APIs for C, Fortran, and Python ( `exodus.py`

). You may find these tools useful for understanding & creating your Exodus file.

Of course, you could also use the `meshio`

Python module to convert into Exodus from a format that’s more familiar to you.

I’ve attached two files to this email to help get you started with Exodus:

And here’s a script that will operate on those files to do sizing. Note that Cubit computes mesh size range by scaling the variable range to the `min_size`

- `max_size`

in the sizing command - small values result in smaller elements. This may seem counter-intuitive if you’ve used a stress variable as your sizing function as high positive values result in larger elements, while small numbers (large negative values if they exist) will correspond to the smallest elements. So I would recommend creating a custom scalar variable where you compute the sizing function.

```
reset
import step "/path/to/ASTM_E8-Round-1.step" heal
webcut volume all with loop curve 1
webcut volume all with loop curve 1
webcut volume all with loop curve 4
webcut volume all with loop curve 7
webcut volume all with loop curve 3
imprint all
merge all
## Use Element Variable (Von Mises Stress) as sizing Function
#import sizing function "/path/to/params_out.e" block 1 variable "von_mises" time 1
## Use Nodal Variable (Z-Displacement) as sizing Function
import sizing function "/path/to/params_out.e" block 1 variable "disp_z" time 1
volume all sizing function type exodus min_size 1 max_size 10
mesh volume all
```

### Sizing by Von Mises Stress

### Sizing by Z-Displacement