preferably three as shown in the embodiment of the cited fig5 the embodiment of fig5 shows a total of five damping leafs 120 for each of the three stacks 125 making a total of five layers for each stack 125 configured in the sandwich type in the following preferred way a damping layer 122 preferably made of silicone rubber a third cfrp layer comprising two symmetric leafs 123 and 123 u2032 a fourth damping layer 124 preferably made of silicone rubber the third layer or center layer is formed by two symmetric leaves 123 and 123 u2032 allowing relative displacement and shear deformation of the leaves 123 and 123 u2032 preferably made of silicone rubber at each side therefore providing a simple energy dissipation mechanism furthermore assembly holes 130 at both ends are provided together with assembly flat pads 140 facilitating the integration with the spring component 11 of the elementary unit element 20 at the edge holes 41 final integration of the above described parts forming each of the elementary unit elements 20 configuring the complete device 10 used for providing dynamic isolation and damping of dynamic vibrations of the invention is shown in fig6 and will be explained as follows the plurality of symmetric leaf springs 113 come together at the edges through the edge holes 41 and flat pads 40 together with the interface holes 42 and flat pads 40 thus being formed the two symmetric stacks 111 and 112 the plurality of damping leafs 120 come together.