Existing techniques for manufacturing reinforcement structures are time consuming and expensive. Additionally, conventional reinforcement structures do not provide a high ratio of strength/stiffness to weight. An apparatus is provided for making a reinforcement structure. Among other things, the apparatus includes a rigid mandrel and a flexible bladder. The flexible bladder at least partially surrounds the rigid mandrel for supporting a reinforcement structure-forming material during fabrication of the reinforcement structure. The flexible bladder is configured to apply a force to the reinforcement structure-forming material in a direction opposite the rigid mandrel in response to a pressure differential between inside and outside of the flexible bladder. An inner surface of the flexible bladder is spaced apart from an outer mandrel surface of the rigid mandrel a distance of from about 0.001 to about 5 mm during a pressure differential and curing of the reinforcement structure-forming material.

    Les techniques existantes de fabrication de structures de renfort sont chronophages et onéreuses. De plus, les structures de renfort traditionnelles noffrent pas un rapport élevé de force/rigidité-poids. Un appareil conçu pour fabriquer une structure de renfort est donc décrit. Entre autres, lappareil comprend un mandrin rigide et une poche souple. La poche souple entoure au moins partiellement le mandrin rigide afin de soutenir un matériau formant la structure de renfort pendant la fabrication de cette structure. La poche souple est configurée pour appliquer une force au matériau formant la structure de renfort dans une direction opposée au mandrin rigide, en réponse à une différence de pression entre lintérieur et lextérieur de la poche souple. Une surface interne de la poche souple est espacée dune surface externe du mandrin rigide à une distance denviron 0,001 à 5 mm pendant une différence de pression et le traitement du matériau formant la structure de renfort.


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    Title :

    APPARATUSES AND METHODS FOR MAKING REINFORCEMENT STRUCTURES


    Additional title:

    MECANISMES ET METHODES DESTINES A PRODUIRE DES STRUCTURES DE RENFORT


    Contributors:

    Publication date :

    2020-02-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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