Theluvielle
Aerospace
- Apr 3, 2023
- 2
Hello dears,
I am currently modelling a struture made of GFRP fabric and am trying to validate the assumptions I have on the material properties.
As it is made of fabric, I have been advised to use a Poisson ratio of 0.05 for each ply. If I understood correctly, when my 20 plies of 0.2mm are stacked together, I would retrieve something closer to the 0.3 usually encountered.
I tried to find some paper to validate this value of 0.05 but cannot find anything about it except from two other persons on a forum agreeing to this value. I have a hard time understanding the physic behind this low value of 0.05 but also finding any article to not use blindly the value.
Have a nice day,
Marie
I am currently modelling a struture made of GFRP fabric and am trying to validate the assumptions I have on the material properties.
As it is made of fabric, I have been advised to use a Poisson ratio of 0.05 for each ply. If I understood correctly, when my 20 plies of 0.2mm are stacked together, I would retrieve something closer to the 0.3 usually encountered.
I tried to find some paper to validate this value of 0.05 but cannot find anything about it except from two other persons on a forum agreeing to this value. I have a hard time understanding the physic behind this low value of 0.05 but also finding any article to not use blindly the value.
Have a nice day,
Marie