公开(公告)号：EP3553492A1

公开(公告)日：2019-10-16

申请号：EP19178452.9

申请日：2017-10-20

Applicant: Bell Helicopter Textron Inc.

Inventor： BURNETT, Michael ,  LEE, Wei-Yeuh ,  DEARMAN, Michael

IPC: G01N3/02 ,  G01M5/00 ,  G01N3/04 ,  G01N3/08 ,  B29C70/32 ,  B29C70/34 ,  B29C70/38 ,  B29C70/54 ,  B29C70/56 ,  B29C70/08 ,  B29C70/30 ,  B29C70/36

Abstract: In a first aspect, there is a method (300) of making a specimen with a predetermined wrinkle defect, the steps including orienting (303) a composite material around a layup tool (302) at a wrap angle to form a closed loop; and generating (309) at least one wrinkle with a predetermined characteristic in a portion of the closed loop to form a specimen. The predetermined characteristic is at least one of the following: wrinkle location, an outward wrinkle, an inward wrinkle, a wrinkle width, a wrinkle height, and a wrinkle length. In another aspect, there is a method (400) of determining allowable defects for a composite component.

公开(公告)号：EP3553492B1

公开(公告)日：2020-08-26

申请号：EP19178452.9

申请日：2017-10-20

Applicant: Bell Helicopter Textron Inc.

Inventor： BURNETT, Michael ,  LEE, Wei-Yeuh ,  DEARMAN, Michael

IPC: G01N3/02 ,  G01M5/00 ,  G01N3/04 ,  G01N3/08 ,  B29C70/32 ,  B29C70/34 ,  B29C70/38 ,  B29C70/54 ,  B29C70/56 ,  B29C70/08 ,  B29C70/30 ,  B29C70/36