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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Changing RVEs size in Material Designer › Reply To: Changing RVEs size in Material Designer

October 30, 2021 at 12:20 pm
sadiqamin475550
Subscriber
Thank you so much What workbench version are you using?
My problem: I am using a chopped strand mat of E glass fiber and polyester matrix. these two materials can be selected from engineering data. I have a fibre lenght of 25mm and dia of 10micrometer so aspect ratio becomes 2500 but this aspect ratio is not supported by material designer so which aspect ratio should I use?
Secondly, what mesh size or repeat count should I choose in order to get an accurate and not changing result?
Thirdly when I change a seed ( random number generator ) each time, the results change drastically each time. So Please suggest me a better solution.
My complete info is
fibre= E glass , E=73Gpa
matrix=polyester, E=3GPa
Fibre volume fraction=0.6
I want to calculate the elastic properites only.