
143Bast Fibers Composites for Engineering Structural Applications
0
2
4
6
8
10
12
14
16
Tensile modulus (GPa)
130 Tex
86 Tex
60 Tex
51 Tex
39 Tex
25 Tex
0
50
100
150
200
250
300
350
400
Tensile stress (MPa)
130 Tex
86 Tex
60 Tex
51 Tex
39 Tex
25 Tex
0
0.01
0.02
0.03
0.04
0.05
Tensile strain (mm/mm)
130 Tex
86 Tex
60 Tex
51 Tex
39 Tex
25 Tex
FIGURE 7.6 Inuence of the hemp yarn type on the tensile properties. (a) Modulus, (b) ulti-
mate tensile strength, and (c) strain for the unidirectional composite. All samples measured
at the 41% ber volume fraction.