Discussion Forum

Hi Hannah,

This is something that you need to find out. We don't have any PECH material in our material libraries at the moment. Also, this is a rubber/elastomer material, so there is really no Young’s modulus. Poisson’s ratio for rubbers is typically around 0.4.

Best regards,

Magnus

Poisson’s ratio for rubbers is typically around 0.4.

I think you mean almost 0.5?

Hi Hannah,

It seems like material properties for PECH materials are hard to get by. Perhaps you can reach out to this company, which manufactures PECH materials: https://www.zeonchemicals.com/.

Best regards,

Magnus

Hi,

knowledge of material properties is often an issue in physical modeling of either exotic materials or not so exotic materials in unusual applications. I often need to model magnetostriction in steel materials that are not typically used in magnetic applications. So the magnetostrictive function is not available. I can only use some generic function for the material class and must adapt it to my needs.

But often you can learn a lot already by applying an educated guess for the property you don't know. In your example you might try to set up the model using properties of a well known rubber-like material with similar properties, something that looks and feels similar to the desired material.

You can then study to what degree your system is sensitive to a certain property and you can investigate its impact over a reasonable range of that property in a parametric study.

In case you have measurement data you can try to optimize the material properties in order to match the measurement.

Just a few ideas to avoid getting totally stuck. Cheers Edgar