Tracking accelerated aging of composites with ultrasonic attenuation measurements

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Description

Composite materials are steadily replacing traditional materials in many industries. For many carbon composite materials, particularly in aerospace applications, durability is a critical design parameter which must be accurately characterized. Lawrence Livermore National Laboratory (LLNL) and Boeing Commercial Airplane Group have established a cooperative research and development agreement (CRADA) to assist in the high speed research program at Boeing. LLNL`s expertise in fiber composites, computer modeling, mechanical testing, chemical analysis and nondestructive evaluation (ND) will contribute to the study of advanced composite materials in commercial aerospace applications. Through thermo-mechanical experiments with periodic chemical analysis and nondestructive evaluation, the aging mechanisms ... continued below

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10 p.

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Chinn, D.J.; Durbin, P.F.; Thomas, G.H. & Groves, S.E. October 1, 1996.

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Description

Composite materials are steadily replacing traditional materials in many industries. For many carbon composite materials, particularly in aerospace applications, durability is a critical design parameter which must be accurately characterized. Lawrence Livermore National Laboratory (LLNL) and Boeing Commercial Airplane Group have established a cooperative research and development agreement (CRADA) to assist in the high speed research program at Boeing. LLNL`s expertise in fiber composites, computer modeling, mechanical testing, chemical analysis and nondestructive evaluation (ND) will contribute to the study of advanced composite materials in commercial aerospace applications. Through thermo-mechanical experiments with periodic chemical analysis and nondestructive evaluation, the aging mechanisms in several continuous fiber polymer composites will be studied. Several measurement techniques are being studied for their correlation with aging. This paper describes through-transmission ultrasonic attenuation measurements of isothermally aged composite materials and their use as a tracking parameter for accelerated aging.

Physical Description

10 p.

Notes

OSTI as DE97050737

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  • QNDE: 23. annual review of progress meeting in quantitative nondestructive evaluation, Brunswick, ME (United States), 28 Jul - 2 Aug 1996

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  • Other: DE97050737
  • Report No.: UCRL-JC--124098
  • Report No.: CONF-9607129--2
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 437787
  • Archival Resource Key: ark:/67531/metadc677539

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 23, 2016, 12:46 p.m.

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Chinn, D.J.; Durbin, P.F.; Thomas, G.H. & Groves, S.E. Tracking accelerated aging of composites with ultrasonic attenuation measurements, article, October 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc677539/: accessed October 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.