In an aligned and continuous glass fiber-reinforced nylon 6.6 composite, the fib

Question

In an aligned and continuous glass fiber-reinforced nylon 6.6 composite, the fibers are to carry 84% of a load applied in the longitudinal direction.
a) Using the data provided, determine the volume fraction of fibers that will be required.
b) What will be tensile modulus of elasticity of this composite?

In an aligned and continuo's glass fiber-reinforced nylon 6.6 composite, the fibers are to carry 84% of a load applied in the longitudinal direction. Using the data provided. determine the volume fraction of fibers that will be required. What will be tensile modulus of elasticity of this composite?

Explanation / Answer

a. Ff/Fm = EfVf / EmVm = EfVf / Em(1- Vf)

Ef: elastic modulus of the fiber material

Em: elastic modulus of the matrix material

Ff or Fm: volume fraction of the fiber or matrix material

So, 0.84/0.16 = 5.25 = (72.5 GPa) Vf /(3 GPa) (1- Vf)

0.217 = Vf /(1- Vf)

Vf = 0.178

b. Tensile modulus of the composite

= m (1 Vf ) + f Vf

= 76 MPa (1-0.178) + 3400 MPa*0.175

= 657.47 MPa

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.