公开(公告)号：US20200333228A1

公开(公告)日：2020-10-22

申请号：US16912934

申请日：2020-06-26

Applicant: Bell Textron Inc.

Inventor： Xiaoming Li ,  Bogdan R. Krasnowski ,  Robert A. Figueroa ,  Robert Wardlaw

IPC: G01N3/62 ,  G01N3/02 ,  G06F30/15

Abstract: A notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer; isolating the notch; and selectively etching the notch to provide an etched surface of the notch; wherein at least a portion of the re-melt material layer has been removed from the notch. In one aspect, there is provided a notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer, the specimen includes steel or an alloy thereof; isolating the notch; and selectively etching the notch with a first etching solution and a second etching solution to provide an etched surface on the notch; wherein at least a portion of the re-melt material layer has been removed from the notch.

公开(公告)号：US11428614B2

公开(公告)日：2022-08-30

申请号：US16912934

申请日：2020-06-26

Applicant: Bell Textron Inc.

Inventor： Xiaoming Li ,  Bogdan R. Krasnowski ,  Robert A. Figueroa ,  Robert Wardlaw

IPC: G01N3/62 ,  G01N3/02 ,  G06F30/15 ,  G06F119/18

Abstract: A notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer; isolating the notch; and selectively etching the notch to provide an etched surface of the notch; wherein at least a portion of the re-melt material layer has been removed from the notch. In one aspect, there is provided a notch treatment method for flaw simulation including providing the specimen with the notch, the notch having a re-melt material layer, the specimen includes steel or an alloy thereof; isolating the notch; and selectively etching the notch with a first etching solution and a second etching solution to provide an etched surface on the notch; wherein at least a portion of the re-melt material layer has been removed from the notch.

公开(公告)号：US20200223194A1

公开(公告)日：2020-07-16

申请号：US16781355

申请日：2020-02-04

Applicant: Bell Textron Inc.

Inventor： Bogdan Roman Krasnowski ,  Robert Arnold Brack ,  Xiaoming Li ,  Robert Wardlaw

IPC: B32B27/08 ,  B32B27/38 ,  B29C70/06 ,  B32B37/14 ,  B29C70/30 ,  B32B5/14

Abstract: In some embodiments, a method of manufacturing composite laminate, including providing a first fibrous material having a plurality of fibers, providing a second fibrous material having a plurality of fibers, disposing the fibers of the first fibrous material in a first polymeric matrix, disposing the fibers of the second fibrous material in a second polymeric matrix, laying up a plurality of the first fibrous material on a rigid structure, laying up the second fibrous material on the rigid structure, wherein the first fibrous material is in contact with the second fibrous material, curing the first polymeric matrix, creating a plurality of baseline layers from the plurality of first fibrous material and the first polymeric matrix, and curing the second polymeric matrix, creating a compliant layer from the second fibrous material and the second polymeric matrix. The compliant layer is stronger than each individual baseline layers.