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Ultrasonic goniometry immersion techniques for the measurement of elastic moduli
S. Siva Shashidhara Reddy, ,
Published in
2005
Volume: 67
   
Issue: 1
Pages: 3 - 17
Abstract
In the present study, two goniometry based immersion techniques have been compared for the measurement of elastic constants in isotropic and transversely isotropic materials. Measurements were carried out on transversely isotropic unidirectional (glass-epoxy and graphite-epoxy) composite materials. From the measured velocity data, the elastic constants were determined through a numerical inversion. These techniques (through-transmission and back-reflection) were verified using contact testing, mechanical testing, rule of mixtures estimation and the data provided by the manufacturers. The results obtained and the limitations of each of these techniques are discussed. © 2004 Elsevier Ltd. All rights reserved.
About the journal
JournalComposite Structures
ISSN02638223
Open AccessNo
Concepts (14)
  •  related image
    Epoxy resins
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    Graphite
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    Mechanical testing
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    Numerical methods
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    Velocity measurement
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    GLASS-EPOXY
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    IMMERSION TECHNIQUES
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    Isotropic materials
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    MIXTURES ESTIMATION
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    Composite materials
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    Elastic modulus
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    FIBER REINFORCED COMPOSITE
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    Testing
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    Ultrasonics