Robert M Lyons

US Patent:

20170315095, Nov 2, 2017

Filed:

Jul 11, 2017

Appl. No.:

15/646622

Inventors:

- Waltham MA, US
Andrew P Washabaugh - Chula Vista CA, US
Robert Lyons - Pelham MA, US

International Classification:

G01N 27/90
G01R 33/00
G01R 33/00
G01R 33/10
G01N 27/90
G01R 33/09
G01N 27/72

Abstract:

Methods and apparatus for characterizing composite materials for manufacturing quality assurance (QA), periodic inspection during the useful life, or for forensic analysis/material testing. System are provided that relate eddy-current sensor responses to the fiber layup of a composite structure, the presence of impact damage on a composite structure with or without a metal liner, volumetric stress within the composite, fiber tow density, and other NDE inspection requirements. Also provided are systems that determine electromagnetic material properties and material dimensions of composite materials from capacitive sensor inspection measurements. These properties are related to the presence of buried defects in non-conductive composite materials, moisture ingress, aging of the material due to service or environmental/thermal exposure, or changes in manufacturing quality.

US Patent:

20150212044, Jul 30, 2015

Filed:

Dec 10, 2014

Appl. No.:

14/566422

Inventors:

- Waltham MA, US
Andrew P. Washabaugh - Chula Vista CA, US
Robert Lyons - Pelham MA, US
Zachary Thomas - Cambridge MA, US
Christopher Martin - Concord MA, US

International Classification:

G01N 27/90

Abstract:

Methods and apparatus for characterizing composite materials for manufacturing quality assurance (QA), periodic inspection during the useful life, or for forensic analysis/material testing. System are provided that relate eddy-current sensor responses to the fiber layup of a composite structure, the presence of impact damage on a composite structure with or without a metal liner, volumetric stress within the composite, fiber tow density, and other NDE inspection requirements. Also provided are systems that determine electromagnetic material properties and material dimensions of composite materials from capacitive sensor inspection measurements. These properties are related to the presence of buried defects in non-conductive composite materials, moisture ingress, aging of the material due to service or environmental/thermal exposure, or changes in manufacturing quality.