Modelling of Creep and Stress Relaxation Test of a Polypropylene Microfibre by Using Fraction-Exponential Kernel

Table 1

Properties of polypropylene fibre.

Diameter (mm)	0.78
Tensile strength (N/mm^2)	273.0
Elastic modulus at (N/mm^2)	5.131 × 10^3
Elastic modulus at (N/mm^2)	1.959 × 10^3