Abstract: An arcuate fiber composite plastic preform and a method for the production of curved profiles with any fiber layer structure are disclosed, which include a layered fiber structure with a base and an arcuate outer contour, an inner edge and an outer edge. The fiber layer structure is configured with a first inner area provided with elevations and depressions, a second adjacent central area with no elevations and depressions and a third outer area and provided with radially oriented open recesses. The method of producing curved profiles from fiber composite plastic preforms having any fiber layer structure includes a molding step, whereby the outer area of the preform with wedge-shaped recesses is being compressed while the inner relief-shaped area is being completely stretched thereby flattening the relief.

Abstract: An arcuate fiber composite plastic preform and a method for the production of curved profiles with any fiber layer structure are disclosed, which include a layered fiber structure with a base and an arcuate outer contour, an inner edge and an outer edge. The fiber layer structure is configured with a first inner area provided with elevations and depressions, a second adjacent central area with no elevations and depressions and a third outer area and provided with radially oriented open recesses. The method of producing curved profiles from fiber composite plastic preforms having any fiber layer structure includes a molding step, whereby the outer area of the preform with wedge-shaped recesses is being compressed while the inner relief-shaped area is being completely stretched thereby flattening the relief.

Abstract: The invention relates to a testing device for hull shells, wherein the test specimen is joined to a complementary structure with legs, having a U-shape in cross section, and at the ends of the legs there are provided lengthwise flanges in the lengthwise direction of the complementary structure with means of attaching the hull shell to the complementary structure and of applying and absorbing corrective forces, while at the borders of the complementary structure in the lengthwise direction there are provided transverse flanges for applying and absorbing of test forces in six degrees of freedom. The complementary structure (1) is formed as a soft box of composite materials and the U-shaped cross section of the complementary structure (1) consists of a horizontal straight segment (11) and two ellipsoidal segments (12) adjoining each side, forming the legs (3) of the U-shaped complementary structure (1).