公开(公告)号：US11840613B2

公开(公告)日：2023-12-12

申请号：US18058912

申请日：2022-11-28

Applicant: ROLLS-ROYCE plc

Inventor： Eduardo Santana De Vega ,  Giuliano Allegri ,  Stephen Hallett ,  Ian Hamerton ,  Bing Zhang

IPC: B32B3/06 ,  C08J5/24 ,  B29C70/82

CPC classification number: C08J5/246 ,  B29C70/82 ,  B32B3/06 ,  C08J2363/00 ,  C08J2367/00 ,  C08J2375/00 ,  C08J2379/08 ,  C08J2479/06

Abstract: A Z-pin for increasing a delamination resistance of continuous fibre-reinforced polymer composites, formed of a composite material including a polymer matrix, and a plurality of fibres embedded in the polymer matrix and aligned along the length direction of Z-pin, the fibres having an elongation at break of at least 2% and a tensile strength of at least 5 GPa, the polymer matrix having an elongation at break equal to or greater than the elongation at break of the fibres, and a tensile strength of at least 120 MPa.

公开(公告)号：US09952180B2

公开(公告)日：2018-04-24

申请号：US15179095

申请日：2016-06-10

Applicant: ROLLS-ROYCE plc

Inventor： Bing Zhang

IPC: G01N27/82

CPC classification number: G01N27/82

Abstract: A composite component comprising a plurality of plies and a plurality of pins extending transversely to the plies, wherein the pins comprise a magnetic material. A magnetic field generator is configured to generate a magnetic field through a thickness direction of the component; and a sensor is provided for detecting a change in magnetic flux indicative of delamination of the plies.

公开(公告)号：US09983159B2

公开(公告)日：2018-05-29

申请号：US14848996

申请日：2015-09-09

Applicant: ROLLS-ROYCE PLC

Inventor： Bing Zhang ,  Giuliano Allegri

IPC: G01N27/20 ,  F01D5/28 ,  G01M15/14 ,  G01N27/24

CPC classification number: G01N27/20 ,  F01D5/282 ,  G01M15/14 ,  G01N27/24 ,  Y02T50/672

Abstract: A method of detecting delamination of a composite component, the composite component having a plurality of plies and a plurality of z-pins extending through the composite component in a direction transverse to the plies. The method includes measuring one or more material properties of one or more of the z-pins. The measured material properties are compared to reference material properties. An estimation of whether delamination has occurred is performed based upon the comparison of the measured material properties and the reference material properties.