Fiber-composite sandwich material containing shape-memory alloys

A sandwich component comprising at least two cover layers and one core layer containing wires comprising shape-memory metal, obtainable by a process comprising:

• providing a press device having a first mold part and a second mold part which can be moved relative to one another between a closed position, in which they enclose a cavity, and an open position, in which the cavity is open to an environment, wherein the first mold part and/or the second mold part are heatable;
• providing a semi-finished sandwich product having a first cover-layer semi-finished ply comprising a long-fiber-reinforced press compound with thermoset matrix, a second cover-layer semi-finished ply comprising a long-fiber-reinforced press compound with thermoset matrix, and, between them, a core-layer semi-finished ply;
• in the open position of the press device, inserting the semi-finished sandwich product into the cavity;
• moving the first and the second mold part relative to one another into the closed position;
• and
• pressing together the first and the second mold part, wherein the semi-finished sandwich product experiences a certain press pressure, and heating the first and/or the second mold part, wherein the semi-finished sandwich product experiences a certain processing temperature, wherein the press device comprises a spacer, which, in the closed position, defines a minimum distance between the first and the second mold part and thus sets the minimum dimensions of the cavity, and wherein the spacer is adjusted such that the press pressure in the closed position is between a minimum processing pressure of the first and/or the second cover-layer semi-finished ply and a maximum permissible pressure limit for the core-layer semi-finished ply.