This work aims to develop and characterize a hybrid composite material with two particles of the same size. As reinforcing particles, the hulls of palm nuts and coconut are chosen. Hybrid composite material composites in the form of specimens were produced by molding at 10%, 20% and 30% mass fractions in various sizes (0.63 mm, 1.25 mm and 2.5 mm). The samples were physically characterized (water absorption rate, moisture content, actual, theoretical and apparent density) and mechanical in 3-point flexion. The main results are: the highest and minimum water absorption rate are respectively 3.57% and 0.67% for respectively particle sizes 1.25 mm (sample P10C30) and 0.67% in the size of 0.63 mm (sample P10C10). The moisture content varies from 0.64 to 7.14% respectively for the P20C20 (2.5 mm) and P10C30 (2.5 mm) samples. The maximum and minimum real density are 1340,518 Kg/m 3 and 1055.981 Kg/m 3 , for respectively the composites of particles sizes 1.25 mm (P20C10) and 0.63 mm (sample P20C20). The minimum real density is its maximum theoretical density is 1194.949 Kg/m 3 (for samples P20C10, P10C10 and P30C10); however, the minimum is 1189.966 Kg/m 3 (P10C20 and P20C20). The bulk density varies from 933.28 Kg/m 3 to 1176.1 Kg/m 3 , respectively, in sizes from 2.5 mm (P10C30) to 0.63 mm (for P10C30). As for the mechanical characteristics, the Modulus of Elasticity (MOE) varies from 25.664 GPa to 25.759 GPa, respectively, the samples P10C10 (1.25 mm) and P10C20 (2.5 mm). The MOE values describe a parabola whose peak is reached when the palm shell loads are 20%, that is to say P20C10, whatever the particle size distribution. In resilience, samples with small particles are more resilient with a maximum value of 22.49 J/cm 2 and a minimum value of 4.45 J/cm 2 to verify the principles of Hall-Petch's law.

This paper presents a software, ELLIPSE-COMP-2009, for the simulation and the control of ellipsoidal mandrels winding in the manufacturing of composite structures. The winding machine is controlled by a numerical-control unit. The deposit point of the fibre on the mandrel follows the geodesic lines to optimise the consumption of the ribbon and avoid fibres sliding over the mandrel.In this paper, we determine the geodesic line over ellipsoidal structures, subsequently the coordinates of the feed-eye in the space; leading to stabilise the fibre setting by synchronizing the mandrel rotation and the feed-eye displacement.The case in which the cross section of the ellipsoidal structure remain constant has been studied and published as ELLIPS-COMP-2002 /!/, case of winding right beams with elliptical cross section. ELLIPSE-COMP-2009 presented on this paper is an extension of ELLIPSE-COMP-2002 to the winding of conical beam with elliptical cross section.