Question

A woven fabric with areal density of 300 g/m\(^2\) is tested by strip tensile test method, keeping the specimen width as 5 cm and gauge length as 25 cm. If the breaking load is 900 N, the tenacity (cN/tex) of the fabric is \(\underline{\hspace{2cm}}\).

Hint:

Tenacity is calculated as the breaking load per unit mass of the fiber, and is typically expressed in cN/tex.

Answer 1

Correct Answer: 6

Tenacity is defined as the breaking load per unit of fiber mass (denier or tex). We can calculate the tenacity using the formula: \[ \text{Tenacity} = \frac{\text{Breaking load (in N)} \times 100}{\text{Areal density (in g/m}^2\text{)}}. \] Substituting the given values: \[ \text{Tenacity} = \frac{900 \times 100}{300} = 300. \] Thus, the tenacity of the fabric is \( 21.0 \).