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Characterization of Composite and Adhesive Cure by Ultrasonic Waves

  • S. I. Rokhlin

Abstract

Thermosetting resins are widely used as matrices for advanced composite materials and structural adhesives. Fabrication of composite materials or adhesive joining consists of curing (polymerization), under proper thermal and pressure conditions, of resin-impregnated fiber fabrics. During the curing reaction, the thermoset resin transforms from the visco-liquid state to a gel and then vitrifies to the gelled glass. This transformation is accompanied by strong changes of the viscoelastic properties of the material which are related to the molecular network. Therefore measurements of velocity and attenuation of ultrasonic waves during cure may give important information on the extent of the thermoset curing reaction and the mechanical properties of the material.

Keywords

Longitudinal Wave Ultrasonic Wave Ultrasonic Velocity Slip Boundary Condition Pure Epoxy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • S. I. Rokhlin
    • 1
  1. 1.Department of Welding EngineeringThe Ohio State UniversityColumbusUSA

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