Lightweight structural panel

1. A lightweight structural panel which comprises:

a planarly extended outer skin of predetermined thickness, the outer skin being formed by a plurality of component layers which are each extended in a planar direction of the lightweight structural panel and complement one another in a direction of thickness to form the thickness of the outer skin and are interconnected,

wherein the plurality of component layers comprises an inner component layer that is made of a plurality of planar elements, at least two of the plurality of planar elements being positioned adjacent to one another;

wherein each of the plurality of planar elements comprises two component elements arranged on one side of the respective planar elements;

wherein the component elements of adjacent planar elements form a plurality of stiffening elements, the plurality of stiffening elements being connected to the outer skin and arranged at a predetermined distance from one another, the plurality of stiffening elements being formed in one piece or integrally with the inner component layer;

wherein at least one of the plurality of stiffening elements comprises a web region arranged substantially perpendicularly to the planar direction of the outer skin and extending in a longitudinal direction along the outer skin, the web region being formed in one piece with the planar elements of the inner component layer;

wherein at least one of the plurality of stiffening elements comprises a flange region extending substantially parallel to the planar direction of the outer skin, the flange region being formed in one piece or integrally with the web region; and

wherein at least one of the plurality of stiffening elements has an inverted J-shaped cross section or box-shaped cross section, of which a vertical leg forms the web region and another leg forms the flange region.

2. The lightweight structural panel according to claim 1 , wherein the outer skin is formed by a first component layer and a second component layer.

3. The lightweight structural panel according to claim 1 , wherein the plurality of planar elements are joined together in the planar direction.

4. The lightweight structural panel according to claim 3 , wherein the planar elements of the inner component layer each include one or more of the stiffening elements.

5. The lightweight structural panel according to claim 1 ,

wherein the stiffening elements are interconnected, and

wherein the plurality of component elements forming the stiffening elements each have a same-direction inverted J-shaped cross section and are tailored to one another such that they lie flat against one another and complement one another to form the stiffening element with an inverted J shaped cross section.

6. A lightweight structural panel comprising:

a planarly extending outer skin of a predetermined thickness, the outer skin being formed by component layers comprising an inner component layer and a metal alloy, the component layers each extending in a planar direction of the lightweight structural panel and complement one another in the direction of thickness to form a thickness of the outer skin and are interconnected;

wherein the inner component layer comprises a plurality of planar elements, at least two of the plurality of planar elements being positioned adjacent to one another;

wherein and each of the plurality of planar elements comprises two component elements arranged on one side of the respective planar elements; and

wherein the component elements of adjacent planar elements form a plurality of stiffening elements, the plurality of stiffening elements being connected to the outer skin and being arranged at a predetermined distance from one another, the plurality of stiffening elements being formed in one piece or integrally with the inner component layer;

wherein at least one of the plurality of stiffening elements comprises a web region arranged substantially perpendicularly to the planar direction of the outer skin and extending in a longitudinal direction along the outer skin, the web region being formed in one piece with the planar elements of the inner component layer;

wherein at least one of the plurality of stiffening elements comprises a flange region extending substantially parallel to the planar direction of the outer skin, the flange region being formed in one piece or integrally with the web region; and

wherein at least one of the plurality of stiffening elements has an inverted J-shaped cross section or box-shaped cross section, of which a vertical leg forms the web region and another leg forms the flange region.

7. The lightweight structural panel according to claim 6 , wherein the planar elements join together in the planar direction.

8. The lightweight structural panel according to claim 1 , wherein the component layers comprise a metal alloy.

9. The lightweight structural panel according to claim 1 , wherein the component layers comprise a fiber composite material.