METHOD AND DEVICE FOR PRODUCING CONTOURED COMPOSITE LAMINATE STIFFENERS WITH REDUCED WRINKLING

A contoured composite laminate stiffener (20) is fabricated by assembling a substantially flat composite laminate charge (38) and forming the charge into a substantially straight stiffener having a desired cross sectional shape. A contour is formed in the stiffener (20) which has an inside radius (3...

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Bibliographische Detailangaben
Hauptverfasser:	CHRISTOPHER DAVID OFFENSEND, KIRK B. KAJITA, MATTHEW R. SOJA, KIERAN P. DAVIS
Format:	Patent
Sprache:	eng ; por
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A contoured composite laminate stiffener (20) is fabricated by assembling a substantially flat composite laminate charge (38) and forming the charge into a substantially straight stiffener having a desired cross sectional shape. A contour is formed in the stiffener (20) which has an inside radius (34) and an outside radius (36). Ply wrinkling is substantially eliminated by reducing compression strain on the inside radius as the stiffener (20) as being contoured.