A unidirectional E-Glass fiber-epoxy composite material contains 61% by volume E-Glass fibers stressed under isostrain conditions. The E-Glass fibers have a tensile modulus of 10x106 psi, and a tensile strength of 0.35x106 psi. The epoxy matrix has a tensile modulus of 0.45x106 psi, and a tensile strength of 9.0x103 psi. What is the strength of the composite material and what fraction of the load is carried by the E-Glass fibers?

The total load carried by the fiber will be "98%".

Explanation:

The given values are:

,

As we know,

⇒  

On putting the estimated values, we get

⇒      

⇒      

Now,

⇒  

On putting the estimated values, we get

⇒      

⇒      

Therefore,

The load carried by fiber,

i.e., 98%

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