A general law of energy release is derived for stressed heterogeneous
materials, being valid from the starting moment of loading till the moment of
materials fracture. This law is obtained by employing the extrapolation
technique of the self-similar approximation theory. Experiments are
accomplished measuring the energy release for industrial composite samples. The
derived analytical law is confronted with these experimental data as well as
with the known experimental data for other materials.Comment: Latex, 15 pages, no figure