초록 ▼

A method for repairing a high temperature composite structure fabricated from layers of composite plies. If the composite structure contains an internal high temperature core, the core is first restored by installing a core block into the damaged region, bonding the core block in place by applying h

A method for repairing a high temperature composite structure fabricated from layers of composite plies. If the composite structure contains an internal high temperature core, the core is first restored by installing a core block into the damaged region, bonding the core block in place by applying high temperature material resin and uncured foam material into the region between the core block and the damaged region, and partially curing the core block. A number of repair plies, formed from pre-impregnated composite material or formed using dry cloth manually impregnated with high temperature resin are prepared. The repair plies are sized and shaped using a series of templates corresponding to the damaged region. The installed plies are cured using high temperature localized heating of the damaged region without impairing the surrounding structure.

대표청구항 ▼

[ We claim:] [11.] A method for repairing a composite component fabricated from a high temperature material, said component comprising a plurality of composite plies and having a damaged region therein, the method comprising the steps of:(a) preparing a plurality of repair plies corresponding to the

[ We claim:] [11.] A method for repairing a composite component fabricated from a high temperature material, said component comprising a plurality of composite plies and having a damaged region therein, the method comprising the steps of:(a) preparing a plurality of repair plies corresponding to the composite plies of the component for installing into the damaged region, the repair plies comprising resistivity plies selected ensure the electrical integrity of the component by matching the resistive taper of the resistivity plies to the resistive taper of the damaged region;(b) preparing a plurality of templates for sizing and placing the plurality of repair plies;(c) installing the plurality of repair plies, using the templates for positioning, to repair the structural integrity of the composite component;(d) partially curing the resistivity plies to improve handling and the electrical integrity of the damaged region; and(e) curing the damaged region of the composite component.