SANDWICH PANEL, METHOD FOR PRODUCING UNIDIRECTIONAL PREPREG, AND METHOD FOR PRODUCING SANDWICH PANEL

Provided is a sandwich panel which not only is lightweight but also can be produced inexpensively, which moreover has a fracture mode in which the sandwich panel fractures gradually near the fracture point rather than fracturing all at once, and furthermore in which it is possible to mitigate cracki...

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Bibliographische Detailangaben
Hauptverfasser:	HIRAI Masaaki, WATABE Kenichi, TANAKA Hiroshi, HORIE Takahiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Provided is a sandwich panel which not only is lightweight but also can be produced inexpensively, which moreover has a fracture mode in which the sandwich panel fractures gradually near the fracture point rather than fracturing all at once, and furthermore in which it is possible to mitigate cracking that occurs in the direction of fibers in a unidirectional fiber body during machine processing. A sandwich panel in which a skin layer (2) is provided to upper and lower surfaces of a core (1), wherein the sandwich panel is characterized in that: the skin layer (2) is obtained by layering unidirectional-fiber-reinforced resin bodies (3, 4) that comprise a matrix resin and a unidirectional fiber body in which carbon fiber bundles (A) and glass fiber bundles (B) are aligned, and woven-fiber-reinforced resin bodies (5, 6) that comprise a matrix resin and an interwoven fiber body; and commingled parts (C) in which the nap of the carbon fiber bundles (A) and that of the glass fiber bundles (B) commingle, or unitary parts where only the nap of the carbon fiber bundles (A) is present, are provided along the length direction of each fiber bundle between adjacent carbon fiber bundles (A) and glass fiber bundles (B) in the unidirectional-fiber-reinforced resin bodies (3, 4).