Patent ID: 9370918
Filing Date: 2016-06-21
CPC Classification: B32B,B64G,F16B,Y10T

Claim Text:
1. A method for increasing durability of adhesively bonded joints in a sandwich structure, the method comprising: providing a first face sheet, a second face sheet, and a sandwich core material arranged between the first face sheet and the second face sheet; providing a first splice and a second splice; providing an insert structure having a first insert face sheet, a second insert face sheet, and an insert core material arranged between the first insert face sheet and the second insert face sheet, wherein the sandwich core material has a recessed area configured to hold at least a portion of the insert structure; coupling the first splice to the first face sheet using a first primary bondline; coupling the second splice to the second face sheet using a second primary bondline; coupling the first face sheet to the first insert face sheet using a first redundant bondline; coupling the second face sheet to the second insert face sheet using a second redundant bondline; and reducing a load on the first primary bondline by the first redundant bondline and a load on the second primary bondline by the second redundant bondline.