Abstract: Composite materials have a different character compare with conventional materials and essentially should be consider as structures. A design process, most efficiently using such materials, is a process which capable of producing highly integrated structures. In which, one of the most impotent elements is the design of the fiber reinforcement micro-structure based on the understanding of micro-mechanics of composite materials.

Key words: material character, structure, unique advantage, weakness, integrated design, fiber reinforcement structure, micromechanics