Patent ID: 8697216
Filing Date: 2014-04-15
Classification: B32B,B64G,F16B,Y10T

Abstract:
1. An apparatus for increasing durability of adhesively bonded joints in a sandwich structure, the apparatus comprising: a first face sheet and a second face sheet; an insert structure, the insert structure having a first insert face sheet, a second insert face sheet, and an insert core material; and a sandwich core material arranged between the first face sheet and the second face sheet, the sandwich core material having a recessed area capable of holding at least a portion of the insert structure; wherein the first face sheet is coupled to a first splice by a first primary bondline and the first face sheet is coupled to the first insert face sheet by a first redundant bondline; wherein the second face sheet is coupled to a second splice by a second primary bondline and the second face sheet is coupled to the second insert face sheet by a second redundant bondline; and wherein the first redundant bondline reduces a load on the first primary bondline and the second redundant bondline reduces a load on the second primary bondline.