Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Charles Pergantis"'
Publikováno v:
Composites Part B: Engineering. 78:86-94
This paper presents the use of a novel through-transmission ultrasonic (TTU) Acoustography non-destructive evaluation (NDE) method to detect foreign object inclusion (FOI) defects in graphite epoxy composite laminates. The study employed three differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eb723c9698d9b311c8c5b66a2be57e1
https://doi.org/10.1016/j.compositesb.2015.03.048
https://doi.org/10.1016/j.compositesb.2015.03.048
This standard process description (SPD) provides the instructions needed in qualifying candidate adhesives for the screening tests specified in ARL-ADHES-QA-001.00, Sections 8.2 and 8.3. The single-lap-joint testing configuration relies upon a relati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d1f53f7f04bcdf85eba9096d414e911
https://doi.org/10.21236/ad1008131
https://doi.org/10.21236/ad1008131
Autor:
Charles Pergantis, Daniel DeSchepper, Robert E. Jensen, Jason Robinette, Gerard Chaney, David Flanagan, Wendy Kosik. Chaney
This document provides guidance from within the Adhesives and Interfaces Research Team of the Coatings, Corrosion, & Engineered Polymers Branch (CCEPB) and the U.S. Army Research Laboratory (ARL) for initial performance-based screening evaluation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::858ed6fc839e339fb5171fd639cc3496
https://doi.org/10.21236/ada607484
https://doi.org/10.21236/ada607484
Publikováno v:
Thermosense XXXI.
The application of a noncontact air coupled acoustic heating technique is investigated for the inspection of advanced honeycomb composite structures. A weakness in the out of plane stiffness of the structure, caused by a delamination or core damage,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13ee5304e1ccbdadad74442f758338d0
https://doi.org/10.1117/12.819493
https://doi.org/10.1117/12.819493
Publikováno v:
SPIE Proceedings.
This paper presents the results of a comparison study of three ultrasonic nondestructive evaluation (NDE) methods applied to polymer matrix composite (PMC) specimens subjected to impact damage. Samples mainly consisted of various thicknesses of graph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6024ab70d6a6ec4a81cffed6bcf2234d
https://doi.org/10.1117/12.543704
https://doi.org/10.1117/12.543704
Publikováno v:
MRS Proceedings. 851
This paper presents the results of an investigation to determine if thermal deicing methods (hot air, hot water, hot glycol, or radiative heat) would damage the composite materials in helicopter blades. Samples made from Blackhawk helicopter blades w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59db9dc9bcd477defa58b7314f9db3bf
https://doi.org/10.1557/proc-851-nn11.12
https://doi.org/10.1557/proc-851-nn11.12
Autor:
Yunlu Zou, Charles Pergantis, Andrew A. Kostrzewski, Gajendra D. Savant, Dai Hyun Kim, Tin M. Aye
Publikováno v:
SPIE Proceedings.
This paper describes the development of real-time non-contact metrology based on holographic interferometry and neural network fringe analysis software to detect defects in composite materials. The object under inspection is illuminated by a high-pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f06e3c4b4d0536e461da3172d047b78c
https://doi.org/10.1117/12.397799
https://doi.org/10.1117/12.397799
Autor:
James M. Sloan, Charles Pergantis
Publikováno v:
MRS Proceedings. 591
Organic and organo-metallic coatings are presently being applied over bare copper as an approach to improve the co-planarity of circuit boards. Conformal organic solderability preservative coatings (OSP) are environmentally and economically advantage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ccf197c3ad914e02aa6f3b683c5c7fe
https://doi.org/10.1557/proc-591-289
https://doi.org/10.1557/proc-591-289
Autor:
Dai Hyun Kim, Vernon A. Brown, Charles Pergantis, Helen H. Chen, Gajendra D. Savant, Jack Latchinian, Tomasz Jannson, Andrew A. Kostrzewski, Tin M. Aye
Publikováno v:
SPIE Proceedings.
We describe here a holographic non-destructive inspection (NDI) technology developed by Physical Optics Corporation. It is based on real-time holographic dye polymer materials and a shearographic camera, with neural network defect classification soft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4e9f6d1d729da1692e9da9ec7487b22
https://doi.org/10.1117/12.271244
https://doi.org/10.1117/12.271244