Laying spreading method for composite material

The invention relates to a laying spreading method for a composite material. The method is technically characterized in that a Tchebychev Net model is combined with a spring model, so that the composite material can be quickly and accurately spread on a complex curved surface, and a simulation result is more accurate than that of the conventional geometrical spreading method; a local searching algorithm is adopted for node scanning, so that time complexity is lowered into a constant; and an expanding node laying method is adopted, so that a laying blank area generated by a dual-baseline method is eliminated.