PROBLEM TO BE SOLVED: To provide a method of saving the weight of a sandwich panel used in an aerospace structure without sacrificing the structural integration of the panel.SOLUTION: A structural panel includes an inner core material having first and second surfaces which are opposite to each other; and first and second prepreg surface sheets severally joined to the first and second surfaces which are opposite to each other, in which the panel includes an open structure sheet sandwiched between the first surface of the core material and a prepreg surface sheet corresponding to the surface and uses an adhesive agent having less than 200 gsm, the resin content of the first and second prepreg surface sheets is increased to at least to 44 wt.%, and the force of the climbing drum peel test of at least one prepreg surface sheet is increased to a level exceeding 300 N/75 mm to improve the peel force of the panel.SELECTED DRAWING: None
【課題】航空宇宙用構造物に用いるサンドイッチパネルの構造一体性を犠牲にすることなく軽量化する方法を提供する。【解決手段】互いに反対側の第一及び第二の表面を有する内側のコア材料と、互いに反対側の第一及び第二の表面にそれぞれ接合した第一及び第二のプリプレグ表面シートとを含む構造用パネルであって、コア材料の第一の表面とそれに対応するプリプレグ表面シートとの間に挟まれている開放構造シートを含み、200gsm未満の接着剤を使用するとともに,第一及び第二のプリプレグ表面シートの樹脂含有量を少なくとも44重量%まで増大させること,並びに少なくとも一方のプリプレグ表面シートのクライミングドラム剥離試験の力を300N/75mmを超えるまで増大させ,上記パネルの剥離力を改善する。【選択図】なし
SANDWICH PANEL
サンドイッチパネル
2016-03-24
Patent
Electronic Resource
Japanese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64C AEROPLANES , Flugzeuge / F16S CONSTRUCTIONAL ELEMENTS IN GENERAL , Konstruktionselemente allgemein |
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