Determine Young's Modulus and Shear Modulus of Woven Roving
Determine Young's Modulus and Shear Modulus of Woven Roving
(OP)
Question: If the fiber weight per unit area of a woven roving(WR) is given as 24oz/sq yard fabric with a 5 X 4 weave style, is it a wise idea to calculate the Young's Modulus (Tensile Modulus) of the WR by assuming different volume fractions (Vf=0.3,0.4,0.5,0.6 etc)?
From what I understand,
Vf=W/(t*d)
where, W=weight per unit area (known value)
t=thickness (known value)
d=fiber density (known value)
I saw this equation from a book. Is this equation make any sense to everybody? Besides that, I wonder if anybody know the way to calculate Young's Modulus, or Shear Modulus, of WR, Chopped Strand Mat, Continuous Filament Mat and Roving if testing is unapproachable at this point?
Your help is much appreciated.
From what I understand,
Vf=W/(t*d)
where, W=weight per unit area (known value)
t=thickness (known value)
d=fiber density (known value)
I saw this equation from a book. Is this equation make any sense to everybody? Besides that, I wonder if anybody know the way to calculate Young's Modulus, or Shear Modulus, of WR, Chopped Strand Mat, Continuous Filament Mat and Roving if testing is unapproachable at this point?
Your help is much appreciated.





RE: Determine Young's Modulus and Shear Modulus of Woven Roving
well i think that if the formula is ok, that is what the chinese design institutes are doing. but it still depends on the application.
RE: Determine Young's Modulus and Shear Modulus of Woven Roving
To reduce the cost of testing, I need to give a wise guess on the Young's Modulus, Shear Modulus and poisson ratio of each materials (WR,Chopped Strand Mat,Continuous Filament Mat,Roving). I contacted the supplier but they couldn't provide me those data. Therefore, I am wondering if anybody has any ideas to calculate those properties? Thanks.
RE: Determine Young's Modulus and Shear Modulus of Woven Roving
RE: Determine Young's Modulus and Shear Modulus of Woven Roving