公开(公告)号：US11167520B2

公开(公告)日：2021-11-09

申请号：US16367421

申请日：2019-03-28

Applicant: TEXTRON INNOVATIONS INC.

Inventor： Phillip Kendrick ,  Levi Armstrong ,  Paul K. Oldroyd ,  Dave Carlson

IPC: B32B3/12 ,  B32B37/10 ,  B32B37/06 ,  B32B3/30 ,  B32B5/02 ,  B32B5/12 ,  B32B5/26 ,  B32B1/08 ,  B32B3/06 ,  B32B3/28 ,  B21D15/02 ,  B32B3/20 ,  B32B3/10

Abstract: A composite core with non-traditional geometries includes multiple elongate tubes arranged in a two-dimensional array. Each tube is made of a composite material. Each tube includes multiple curved sides. Each curved side inwardly curves toward a longitudinal axis passing through a geometric center of the tube to form a valley on an outer surface of the tube. An end of a first curved side connects to an end of a second curved side to form a crest on the outer surface of the tube. At least one crest formed on an outer surface of a first tube in the two-dimensional array contacts at least one valley formed on an outer surface of an adjacent second tube in the two-dimensional array.