Question

Critical fibre length of a composite is expressed by the following equation

• A. L$_c$ = [\sigma × d] / [2\tau$_C$]
• B. L$_c$ = [\sigma + d] / [2\tau$_C$]
• C. L$_c$ = [2\tau$_C$] / [\sigma × d] /
• D. L$_c$ = [\sigma - d] / [2\tau$_C$]

Hint:

Understanding the critical fibre length helps in evaluating the performance of composites based on their fibre-matrix bonding.

Answer 1

The Correct Option is A

The critical fibre length (L$_c$) in a composite is calculated using the equation above, where σ is the stress, d is the fibre diameter, and \tau is the interfacial shear strength.