Abstract
When honeycomb core sandwich panel (hereafter, HSP for brevity) is used as a floor panel, a dent will be formed on the face sheet of the HSP. If the high toughness material such as Carbon fiber reinforced plastics (hereafter, CFRP for brevity) is used as the face sheet, it is thought that the period for use as the floor panel will extend. In this study, by using HSPs on which 4-ply CFRP of [(0/90),(+45/-45)]s and [(0/90)_4]_T was used as the face sheet(hereafter, CFRP-HSP for brevity), local compression fatigue tests were carried out in consideration of usage condition as floor panel. The fatigue life was similar for both CFRP-HPSs. The rigidity was superior to CFRP-HSP used face sheet of [(0/90),(+45/-45)]s rather than CFRP-HSP used face sheet of [(0/90)_4]_T.
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