Part comprising a structure and a shape memory alloy element

A part for an aviation turbine engine, comprising:

• a structure and at least one shape memory alloy element that is prestressed and embedded at least in part within said structure, said shape memory alloy being suitable for dissipating mechanical energy of said structure when said structure vibrates in a given frequency band,
• wherein said structure is made up of a plurality of sub-structures, said at least one shape memory alloy element being placed in at least one of interfaces between said sub-structures.