Patent ID: 7542632

Claim:
In a composite structure ( 11 ) for a primary structure of an aircraft, the composite structure comprising at least a surface layer ( 13 ), another layer ( 15 , 17 , 19 , 21 , 23 ) and an optical fiber ( 25 ) for structural monitoring purposes at least partly embedded in one of the layers, the improvements characterized in that: a) the embedded part of the optical fiber ( 25 ) is integrated in a the surface layer ( 13 ) of the composite structure ( 11 ) to be susceptible to requiring repair; and b) the composite structure ( 11 ) includes insulation means of at least areas of the embedded part of the optical fiber ( 25 ) with respect to the surface layer ( 13 ) said insulation means including a top separating film ( 31 ) and a bottom separating film ( 33 ), the top separating film ( 31 ) also comprising a laminar protective cover ( 27 ) arranged on the top of said top separating film ( 31 ).