Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1993-02-17
1998-05-12
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156184, 156187, 156192, 156195, B32B 3100
Patent
active
057499853
ABSTRACT:
Process for optimizing the features of multilayered tubes made of fibrous composite materials, allowing to maintain within the specified limits the limit elongations and stresses which they withstand in response to the applied strains. The process comprises selecting at least two optimized features characteristic of each layer (its thickness and the winding angle of the fibers for example) by starting from an initial tube selected a priori. Through small deviations applied to the parameters, the relations between small deviations applied to the parameters and the variations of the resulting limit elongations and stresses are determined, as well as the inverse relations relating the variations of the limit elongations and stresses to the parameter deviations. Knowing these inverse relations allows, in one or several stages, to find out the deviations to be applied in order to make up the measurable differences between the limit elongations and stresses of the optimized tube and the tube selected a priori. Application to the achievement of tubular pipes for the oil industry for example.
REFERENCES:
patent: 4404053 (1983-09-01), Saffire
patent: 4755406 (1988-07-01), Fuchs
patent: 4909880 (1990-03-01), Kittelson et al.
patent: 4921557 (1990-05-01), Nakamura
patent: 4946528 (1990-08-01), Takahashi et al.
patent: 5066350 (1991-11-01), Sullins
patent: 5223067 (1993-06-01), Hamamoto et al.
Auberon Marcel
Metivaud Guy
Schmitt Jacques
Sparks Charles
Institut Francais du Pe'trole
Rivard Paul M.
Simmons David A.
Societe Aerospatiale
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