An open-channel stiffener for stiffening a panel has a bonding flange for bonding the stiffener to the panel through a bondline formed between the bonding flange and the panel to form a stiffened panel. The open-channel stiffener has a cross-sectional shape that aligns, or substantially aligns, a shear center of the stiffener with a centroid of the stiffener and aligns the shear center proximate an edge of the bondline, and removes the need for a radius filler noodle. A plurality of perforations may be formed through the bonding flange to permit an adhesive to wick into the perforations and create a mechanical interlock between the bonding flange and the panel.

The invention relates to a plastic-metal hybrid component and to a corresponding method for producing a plastic-metal hybrid component. The production method has the following steps: (i) providing a fiber composite semifinished product based on polyamide, at least one part of the surface of the semifinished product being made of a polymer composition which contains the following: a) 100 wt. % of a polyamide; and b) 0.5 to 20 wt. % of one or more adhesive additives of the formula (I); (ii) providing a metal main part; (iii) optionally pretreating the surface of the metal main part in order to produce functionalities; (iv) introducing the main metal part and the fiber composite semifinished product into a pressing tool and closing the tool; and (v) bonding the fiber composite semifinished product and the metal main part by means of a compression process under the effect of pressure and temperature.

The invention relates to a plastic-metal hybrid component and to a corresponding method for producing a plastic-metal hybrid component. The production method has the following steps: (i) providing a fiber composite semifinished product based on polyamide, at least one part of the surface of the semifinished product being made of a polymer composition which contains the following: a) 100 wt. % of a polyamide; and b) 0.5 to 20 wt. % of one or more adhesive additives of the formula (I); (ii) providing a metal main part; (iii) optionally pretreating the surface of the metal main part in order to produce functionalities; (iv) introducing the main metal part and the fiber composite semifinished product into a pressing tool and closing the tool; and (v) bonding the fiber composite semifinished product and the metal main part by means of a compression process under the effect of pressure and temperature.

A component assembly having a stacked arrangement comprising an upper and lower sheet part, of which at least one is formed as an organic sheet composite part, with an auxiliary joining part and with at least one apertured metal washer, wherein the auxiliary joining part has a functional section having an undercut at one end and also has a piercing section at the other end having a lateral shaft surface and a shaft recess formed therein, wherein the metal washer contacts a surface of the organic sheet composite part, with the functional section or the piercing section extending through an aperture of the metal washer and wherein washer material has been driven into the undercut or into the at least one shaft recess.

A component assembly having a stacked arrangement comprising an upper and lower sheet part, of which at least one is formed as an organic sheet composite part, with an auxiliary joining part and with at least one apertured metal washer, wherein the auxiliary joining part has a functional section having an undercut at one end and also has a piercing section at the other end having a lateral shaft surface and a shaft recess formed therein, wherein the metal washer contacts a surface of the organic sheet composite part, with the functional section or the piercing section extending through an aperture of the metal washer and wherein washer material has been driven into the undercut or into the at least one shaft recess.

A pre-preg product, such as a tape or sheet suitable for forming a composite having reinforcement fibers and a liquid crystal thermoset (LCT) precursor is provided. Further aspects of the invention are directed to a method for preparation of the pre-preg product and to composite products based on the pre-preg product.

A composite component has a continuous-filament reinforced thermoplastic material (1) and a metallic insert (2), which is obtainable in that (a) a metallic insert (2) having pin structures (3) attached to the surface is provided, (b) firstly the pinned metallic insert (2) is inserted into a forming tool, (c) subsequently an optionally pre-heated organic sheet (1) manufactured from the continuous-filament reinforced thermoplastic (1) is disposed thereon, (d) the forming tool is closed and subsequent to a dwell time is optionally cooled to room temperature, and finally (e) the composite component (4) thus obtained is removed, is proposed.

A composite component has a continuous-filament reinforced thermoplastic material (1) and a metallic insert (2), which is obtainable in that (a) a metallic insert (2) having pin structures (3) attached to the surface is provided, (b) firstly the pinned metallic insert (2) is inserted into a forming tool, (c) subsequently an optionally pre-heated organic sheet (1) manufactured from the continuous-filament reinforced thermoplastic (1) is disposed thereon, (d) the forming tool is closed and subsequent to a dwell time is optionally cooled to room temperature, and finally (e) the composite component (4) thus obtained is removed, is proposed.

Disclosed is a method for stiffening plates for ship walls. At least one elongate profile member of laminated composite material and having a transverse cross-section of a predetermined shape over the length thereof is pre-manufactured, the profile member being rigid. Then, a panel including laminated composite materials at least on the surface of at least one of the two main surfaces thereof is used, and the at least one pre-manufactured profile member is assembled and attached together onto one of the main surfaces of the panel. The main surface of the panel receives the profile member including laminated composite material. The profile member has a transverse cross-section with three continuous portions: two flanges having substantially straight cross-sections and interconnected by a web. The flanges and the web in transverse cross-section are supported by separate planes, the plane of the web intersecting the two planes, supporting the flanges, at 90.

Disclosed is a method for stiffening plates for ship walls. At least one elongate profile member of laminated composite material and having a transverse cross-section of a predetermined shape over the length thereof is pre-manufactured, the profile member being rigid. Then, a panel including laminated composite materials at least on the surface of at least one of the two main surfaces thereof is used, and the at least one pre-manufactured profile member is assembled and attached together onto one of the main surfaces of the panel. The main surface of the panel receives the profile member including laminated composite material. The profile member has a transverse cross-section with three continuous portions: two flanges having substantially straight cross-sections and interconnected by a web. The flanges and the web in transverse cross-section are supported by separate planes, the plane of the web intersecting the two planes, supporting the flanges, at 90.