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A lamination tailoring technique is proposed in order to control a coefficient of thermal expansion of graphite/epoxy composites in a principal direction. This technique consists of two concepts of the thermoelastic invariants and the lamination parameters. The expansion free condition yields to a parabola in the feasible region of the lamination parameters. The calculated curves for a wide range of temperature intersect almost at a point. A laminate with the lay-up construction corresponding to this point exhibits an approximately null coefficient of thermal expansion in one direction in that temperature range. Some experimental results indicate that the present procedure is possible and promising.

CFRP-laminates with a controlled coefficient of thermal expansion nearly to zero in one principal direction under a wide range of temperature.