The growth of technology has placed rather severe demands on materials engineers to come up with novel materials at low cost to meet stringent and often contradictory property requirements which conventional materials cannot satisfy. In this respect,composite materials show great promise because of their superior stiness, high strength at elevated temperatures and better creep characteristics. Starting as early as 1906 the rotating isotropic disc has been studied by Grubler (1906)followed by Donatch (1912). Probably the first recognition given to the industrial importance of creep was by...