4.1. Tensile strength

Sr.no. % Vol. fraction of Fiber Jute/Epoxy Composite Tensile Strength (MPA) Coir/Epoxy Composite Tensile Strength (MPA)

01 8.3 26.44 28.07

02 10 28.55 27.72

03 12.5 17.73 26.28

Table 2: Tensile strength of composites Figure 6: Tensile strength of jute/coir epoxy composite

The test results for tensile strengths are shown in table 2. It is seen that the tensile strength of the jute/epoxy composite increases with increase in fiber volume fraction up to 10 vol. % and then decreases at 12.5 vol. %. While Coir/epoxy composites tensile strength continuously decreases with increases fiber percentage. Tensile strength of coir/epoxy composite at 8.3, 10 and 12.5 % volume fraction were 28.07, 27.72 and 26.28 MPA respectively. The highest tensile strength was found in 10

*…show more content…*

Compressive strength-

Sr no. % Vol. fraction of Fiber Jute/Epoxy Composite compressive Strength (MPA) Coir/Epoxy Composite compressive Strength (MPA)

01 8.3 52.4 58.9

02 10 60.1 55.8 03 12.5 41.3 53.5

Table 3: Compressive strength of composites Figure 7: Compressive strength of jute/coir epoxy composite For estimating compressive strength of jute/epoxy and coir/epoxy composites were varied from 8.3, 10 and 12.5 volume fraction of fiber. The composite thickness was taken 3mm for both materials. The related compressive strength readings are in MPA as shown in figure 7. The statistical analysis shows that there is significant decrease in Compressive strength of coir/epoxy composites compared to jute/epoxy composite. The compressive strength of jute/epoxy of 12.5 % vol is lowest (41.3 MPA) while 10 % vol. shows higher values (60.1 MPA).

4.3 Flexural strength-

Sr no. Volume fraction of Fiber Jute/Epoxy Composite Flexural Strength (MPA) Coir/Epoxy Composite Flexural Strength (MPA)

01 8.3 40.91 38.30

02 10 46.84 35.83

03 12.5 34.95 26.93

Table 4: Flexural strength of