Structural element for free-form surfaces

The invention relates to a core of a structural element， the core being essentially plate-shaped and having two preferably substantially parallel， opposite and spaced-apart surfaces， the core being provided with slots or grooves with a maximum width and depth in at least one region， the slots or grooves being spaced apart from one another， wherein the distance between two slots or grooves represents a substantially straight connection route， the distances between immediately adjacent slots or grooves varying. The invention further relates to a method for determining a slot pattern or groove pattern for the formable core of a structural element， wherein at least one isoparametric curve (，) is extracted， the at least one isoparametric curve (，) being substantially orthogonal to the desired cutting direction (，) of the slots or milling direction of the grooves is aligned， the isoparametric curve being approximated by a polygon. Finally， the invention relates to a method for producing a structural element according to the invention and the use of such.