Laser Induced Fluorescence (LIF) Nondestructive Evaluation of Incipient Heat Damage in Polymer Matrix Composites, A2476

reportActive / Technical Report | Accession Number: AD1039287 | Open PDF

Abstract:

Fluorescence spectra were measured against four sets of polymer matrix composite PMC specimens that had been heated under controlled conditions of time and temperature at the Naval Air Systems Command NAVAIR. Each set consisted of specimens of a different fiber-reinforced PMC material AS43501 6 5HS AS43501 6 Uni-Tape IM75250 4 Uni-Tape and IM7977 3 Uni-Tape. A chemometric model was developed to correlate changes in spectral features with changes in strength, which NAVAIR had measured according to the short-beam shear SBS standard after performing the heat treatments. That model is shown to be able to predict whether a given specimen had been degraded to below 80 of original strength based on its fluorescence spectrum. All steps of the chemometric model are fully described, and the complete data are provided on the CD that accompanies the report.

Author(s):
Merdes, Daniel W. ; Bowie, Christopher M. ; Moose, Clark A.
Author Organization(s):
PENNSYLVANIA STATE UNIV STATE COLLEGE STATE COLLEGE United States
Descriptive Note:
Technical Report,01 Oct 2011,01 Jul 2016
Pagination:
0061

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release;

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-16-003
Contract/Grant Number(s):
N00024-02-D-6604-0749
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.3_Educating; JCA_1.2.1_Training; JCA_1.2.5_Lessons Learned; JCA_1.1.1_Global Force Management; JCA_1.1_Force Management; JCA_1_Force Support; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Engineered Resilient Systems
Descriptor(s):
polymer matrix composites, laser induced fluorescence, material degradation processes, NONDESTRUCTIVE TESTING, materials testing, mechanical properties, heat treatment, composite materials, structural components, military aircraft, test methods
Field(s)/Group(s):
Laminates and Composite Materials, Test Facilities, Equipment and Methods
Keyword(s):
Incipient Heat Damage, Short Beam Shear, Chemometric Analysis, nde(nondestructive evaluation), aircraft components
Report Date:
2017 Feb 15
Creation Date:
2017 Sep 15