TexGen Capabilities about texgen

[choROPeNt]

Hello,

I think TexGen is one of the best pre-processing tools for composites, especially for woven unit cells/ RVEs. But it's not capable to compute elastic properties. You will need an FE-simulation software such as Abaqus.

In your case, if you have better knowledge about your fibres and resin, you should use some semi-empirical equations/approximations based on micro mechanics to obtain your elastic properties of your UD-Material. This is standard

You should look on that reference:
Kuno K. U. Stellbrink: Micromechanics of Composities: Composite Properties of Fibre and Matrix Constituents - Taschenbuch, 1996, ISBN: 9781569902066

In case you want to validate your results with your experimental data. Use Texten to model your 8HS weave geometry, incorporate your UD-properties (by semi-empirical solution) in the rovings, than apply PBCs on it, solve it, compute the effective properties of your unit cell and compare it to your experimental data.

Best,
Christian

[choROPeNt]

if it should go fast, you can also try DigiMat from University of Gent. But it's proprietary, not open source

[mike-matveev]

Hi Allison,

Normally, TexGen will be used to find properties of a woven composite using properties of UD as input data. It can be done as @choROPeNt described: generate a model, do FE analysis using Abaqus, extract results.

In your case, you can perform a series of analysis where you guess your UD properties and then change them iteratively to match your data for woven composite. It is called the inverse problem (https://en.wikipedia.org/wiki/Inverse_problem).

[ruwea]

Hi all, Thank you for your input. Unfortunately, for the resin material we are working with, we do not have access to it's constitutive properties. Hence the need to work backwards somehow to the UD properties. I have Abaqus and BSAM as FEA software to use. I think using TexGen to "guess" UD input properties might be my best option. Best, Allison Ruwe B.S. Biomedical Engineering Wright State University B.S. Animal Science University of Illinois at Urbana-Champaign

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On Fri, Feb 19, 2021 at 5:06 PM mike-matveev ***@***.***> wrote: Hi Allison, Normally, TexGen will be used to find properties of a woven composite using properties of UD as input data. It can be done as @choROPeNt <https://github.com/choROPeNt> described: generate a model, do FE analysis using Abaqus, extract results. In your case, you can perform a series of analysis where you guess your UD properties and then change them iteratively to match your data for woven composite. It is called the inverse problem ( https://en.wikipedia.org/wiki/Inverse_problem). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#39 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AS5I32VYNNGO5CIAV6ZVY2LS73OH3ANCNFSM4X46EZTA> .