The paper is devoted to the probabilistic homogenisation of the heat conduc
tion problem in the two-component composite materials. The probabilistic mo
ments of the effective conductivities are computed by the use of the Monte-
Carlo simulation computational technique. The procedure improved tested on
the example of the fibre-reinforced composite and the stochastic sensitivit
y with respect to the fibre volume is shown. (C) 1999 Elsevier Science Ltd.