Question

In a Fibre-reinforced composite, the "Critical Fibre Length" ($l_c$) is defined as the length required for

• A. the fibre to break before the matrix fails
• B. the maximum tensile stress to be transferred from the matrix to the centre of the fibre
• C. the composite to become transparent
• D. the matrix to undergo recrystallization

Hint:

For fibers to reinforce a matrix effectively, their length ($l$) must be much greater than the critical length ($l_c$).
Fibers with $l > 15 \ l_c$ are generally considered continuous, while $l < l_c$ fibers act primarily as particulate fillers.

Answer 1

The Correct Option is B