Page 367 - Fiber Fracture

FRACTURE OF COMMON TEXTILE FIBRES 349

E

0.3

x 0.2
Q)
c
z
v)
v)
9
G5 0.1

0
0 5 10 15 20
(9 Extension %
Fig. 12 (continued). (d,e) Theoretical stress-strain plots for composite forms based on plots for crystalline C
and disordered D material in (d) wet and (e) dry state. (0 Comparison of theoretical plots with experimental
curves for standard rayon S and high-wet-modulus rayon H, dry D and wet W.

fracture of reinforced composites. The mechanisms are analogous, with separate rupture
of neighbouring units, though in the composites the scale is larger and the breakage of
individual fibres can be seen in SEM pictures.