Laser ultrasonic determination of the elastic constants of damaged propellant

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DOIResolve DOI: http://doi.org/10.1063/1.1472957
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TypeArticle
Proceedings titleReview of Progress in Quantitative Nondestructive Evaluation: part 21B
Series titleAIP Conference Proceedings; no. Vol. 615
ConferenceReview of Progress in Quantitative Nondestructive Evaluation, July 29-August 3, 2001, Brunswick ME 2001
ISSN0094-243X
Pages13921399; # of pages: 8
Subjectelasticity; laser ultrasonics; laser materials; materials modification; mechanical properties
AbstractWith age and storage, the mechanical properties of solid rocket propellants change due to oxidizer particle debonding from the polymer matrix. The internal damage of a simulated propellant is evaluated by measuring the stiffness changes that occur in the material with a laser ultrasonic system coupled to a tensile testing machine. Elastic constants are calculated from group velocity measurements in non-principal directions. Finally, the stiffness variations are compared with predictions from a micro-mechanical model.
Publication date
PublisherAmerican Institute of Physics
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273121
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Record identifier556db81e-c943-495b-9b73-77cf9784066d
Record created2014-12-16
Record modified2016-05-09
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