  Strengthening of materials and preventing abrupt fracture are really
challenging jobs in the field of engineering and material science. Such
problems can be resolved by using composite materials. In this work, we have
studied the fracture process of a composite material in light of fiber bundle
model with different elastic constants as well as different random threshold
breaking strength of fibers. The critical width of the threshold distribution
($\delta_c$), for which abrupt failure occurs, is studied both analytically and
numerically with increasing number of components $(k)$ in the composite and it
is shown that $\delta_c$ is inversely related to $k$. Corresponding phase
diagram for the model suggests decrease in the tendency of abrupt fracture as
number of components in the composite increase.
