Sharing materials database from FEA in production: automotive, defence, etc

Tips & Tricks
1

Hi There,

I’ve noticed that PrePoMax has the ability to import ‘chunks’ of data via *.inp files. Wonderful, Aba/CAE didn’t used to allow that, dunno now.

So, I’ve compiled (part of) my structural materials from Abaqus into PMX. Note the temperature dependant curves on many, and (cricially) the Plastic (real/measured on most) stress / strain curves, and some temp dependant.

This data was curated over decades of FEA in production, so it is ‘real’ data validated via physical testing before going into production. I think it is time that this kind of data is shared on a lovely open source tool like PMX.

I don’t have the time to label stuff nicely, but do ask if not sure. Also, like all things CAE: “all models are wrong, but some are useful”. Pls do report back my errors/typos, but these from many production projects thru decades, hopefully not many errors …

I see we have 2 ways to import them into PMX:

1.- Brute force:

Replace the stock ‘materials.lib’ with the attached one, which also has the ones that came from PMX install.
materials.lib.pmx (120.5 KB)
you’ll need to raname it to .lib one.

OR

2.- Safe mode:

Import the attached .inp with all mats I added, and check/cherry pick what you want and save in mats library.
Mats.inp (11.6 KB)

I hope these help someone when going full non-linear, have fun!

Cheers,
Jes

3 Likes
2

When added to the library they look something like this:

image
image672×891 24.9 KB

3

Ways to share the materials library are described in the manual - chapter 5.2.5. Exchanging material data between users.

4

ah, thanks for that, my apologies.
I’ll have a look later on.
Cheers.