PSI - Issue 71

Manas Samantaray et al. / Procedia Structural Integrity 71 (2025) 348–356

352

Universal Testing Machine and Impact Testing Machine. The values were calculated and mentioned in Table 3. Roll speeds with respect to maximum force of stress in longitudinal direction is shown in Figure 3. Additionally, there was no discernible difference in stress with an increase in the speed of roll from 100 to 250 rpm.

Figure.1. Shoddy textile waste.

Figure.2. Hand Lay-up method.

Figure.3. Compression Molding.

0 1000 2000 3000 4000

3400.38

2403.14

2001.46

1602.07

0 Young's Modulus (MPa)

Young's…

10

20

30

40

Fibre Volume Fraction (%)

Figure.4. Young’s modulus of the composites.

0 20 40 60 80 100

69.22 88.45 80.23

50.14

Tensile Strength (MPa)

Tensile…

0

10

20

30

40

Fibre Volume Fraction (%)

Figure.5. Increase in Tensile strength of the composites. For cylinder speeds of 50, 100, 150, 200 and 250 rpm stress induced are 50.14, 69.22, 88.45 and 80.23 MPa. For cylinder speeds of 100, 150, 200 and 250 rpm, the maximum tensile stresses in the transverse direction of the machine are 43.24, 65.83, 80.15 and 110.95 MPa. A roller speed of 200 rpm was chosen to produce carded mesh and the analysis of the mechanical properties of the composites by changing the volume fraction of fibers. The tensile strength of the composites and the Young's modulus change as the fiber volume fraction changes. The ultimate tensile stress on the composite increased from 50.13 to 88.40 MPa as shown in Table 4 when the fiber volume percentage increased from 0.1 to 0.3. Young's modulus showed a similar trend, increasing from 1602.07 to 3400.38 MPa for 0.1 to 40% fiber volume. The young’s modulus increases with volume fraction because of the increase in load transfer between fibre and matrix. The stiffer fibre bears a greater proportion of applied load that