PLASTIC-COMPOSITE PROFILED GIRDER, IN PARTICULAR A WING SPAR FOR AIRCRAFT AND FOR WIND-TURBINE ROTORS

摘要

The invention concerns a plastic composite profiled girder, in particular an aircraft wing spar, comprising at least two chords (1) with bonding flanges and at least one web (2) inserted into the bonding flanges and connecting the chords (1) to each other. The chords (1) are made from resin-impregnated rovings and the web (2) is made from resin-impregnated wovens or lay-ups, and the chords (1) and web (2) are joined to each other by adhesive bonding. The chords (1) are produced by pultrusion, the web (2) being inserted into the bonding flange of both chords (1) and fixed there using a thixotropic adhesive (4). This construction ensures that the full flange bonding width is maintained even if the height of the component is varied.