公开(公告)号：US20170320289A1

公开(公告)日：2017-11-09

申请号：US15659427

申请日：2017-07-25

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： James D. Hethcock ,  Kenneth E. Nunn ,  Paul Oldroyd

IPC: B32B5/26 ,  B32B3/12 ,  B32B3/20 ,  B32B5/28 ,  B32B27/12 ,  B32B7/04 ,  B32B7/12 ,  B32B27/04 ,  D04C3/48 ,  B32B5/12

CPC classification number: B32B5/26 ,  B32B3/12 ,  B32B3/20 ,  B32B5/12 ,  B32B5/28 ,  B32B7/04 ,  B32B7/12 ,  B32B27/04 ,  B32B27/12 ,  B32B2250/40 ,  B32B2255/02 ,  B32B2255/26 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/0269 ,  B32B2262/106 ,  B32B2307/50 ,  D04C3/48 ,  Y10T428/24074 ,  Y10T428/31504

Abstract: A composite core includes a plurality of tubes, each the plurality of tubes comprising a plurality of fibers disposed in a polymeric matrix. Adjacent tubes of the plurality of tubes are adhesively bonded to one another along sides of the adjacent tubes. A method of making a composite core includes the steps of providing a plurality of tubes, each of the plurality of tubes including a plurality of fibers disposed in a polymeric matrix, and adhesively bonding adjacent tubes of the plurality of tubes along sides of the adjacent tubes. A method of making a composite core such that a removable band is included in the core, the removable band being configured to be removable through a procedure subsequent to the cure of the composite core, thereby producing gaps in the core.