摘要:
The invention relates to a method, and wings (100) for an aircraft obtained by said method, for assembling a casing structure (100) including basic parts (230, 240, 321) that are assembled according to a sub-structure of stiffeners (230, 240), and skins (321). The sub-structure and the skins consist of a polymer matrix composite material. Said method includes steps involving: a. sizing the casing structure on the basis of the biasing that said structure is subjected thereto, and for an adhered assembly; b. obtaining a mapping of the biasing of said structure and defining a first biasing threshold on the basis of probability of damage to the structure; c. assembling the sub-structure and the skins by adhesion; and d. applying counter-stratification (350) covering the assembled basic parts, in the areas of the assembled casing structure where the first biasing threshold is reached.
摘要:
The invention relates to a method for creating a structural element comprising a panel (110, 121, 122) made of a composite material having a fibrous reinforcement in an organic matrix obtained by layup and curing, which panel comprises a face liable to be exposed to contact with hydrocarbons, characterized in that it comprises the steps involving: a. laying up the plies of fibres preimpregnated with a resin that has a first curing temperature, T1, so as to obtain the desired layering effect; b. applying to the face that is exposed to the hydrocarbons a ply consisting of a thin film (130, 131, 132) of a polymer that is resistant to hydrocarbons and able to withstand the curing temperature T1, referred to as the protective film (130, 131, 132); c. curing the entire layered structure under pressure at the temperature T1.
摘要:
The invention relates to a method for assembling a skin (102) and the flange of a stiffener, characterized in that it involves the steps consisting in: a. sealing the periphery of the contact between the skin and the flange of the stiffener by applying a bead (210, 211) of adhesive to the flange of the stiffener in contact with the skin; b. creating a first and a second orifice, known as vent orifices, in the skin, said orifices opening at the interface between the skin and the flange of the stiffener; c. injecting adhesive through the first orifice termed the injection orifice at the interface between the skin and the flange of the stiffener while keeping said skin in contact with the stiffener until adhesive has fully filled the interface between the skin and the stiffener.