Characterization of Composite and Adhesive Cure by Ultrasonic Waves

  • S. I. Rokhlin


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.


Longitudinal Wave Ultrasonic Wave Ultrasonic Velocity Slip Boundary Condition Pure Epoxy 
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  1. 1.
    G. A. Sofer and E. A. Houser, A new tool for determination of the stage of polymerization of thermosetting polymers, J. Polym. Sci. 6:611 (1952).CrossRefGoogle Scholar
  2. 2.
    E. P. Papadakis, Monitoring the moduli of polymers with ultrasound, J. Appl. Phys. 45:1218 (1974).CrossRefGoogle Scholar
  3. 3.
    A. M. Lindrose, Ultrasonic wave and moduli changes in a curing epoxy resin, Exper. Mech. 18:227 (1978).CrossRefGoogle Scholar
  4. 4.
    S. I. Rokhlin, D. K. Lewis, K. F. Graff, and L. Adler, Real-time study of frequency dependence of attenuation and velocity of ultrasonic waves during the curing reaction of epoxy resin, J. Acoust. Soc. Am. 79:1786 (1986).CrossRefGoogle Scholar
  5. 5.
    S. I. Rokhlin, M. Hefets, and M. Rosen, An elastic interface wave guided by a thin film between two solids, J. Appl. Phys. 51:3579 (1980).CrossRefGoogle Scholar
  6. 6.
    S. I. Rokhlin and E. Segal, Study of the cure kinetics of structural ad-hesives by ultrasonic interface waves, J. Mater. Sci. 20:3300 (1985).CrossRefGoogle Scholar
  7. 7.
    H. T. Hahn, Application of ultrasonic technique to cure characterization of epoxies, in.: “Nondestructive Methods for Material Property Determination,” C. O. Ruud and R. E. Green, eds., Plenum, New York (1983).Google Scholar
  8. 8.
    J. K. Gilham, Torsional braid analysis of polymers, in: “Developments in Polymer Characterization,” J. V. Daukins, ed., Applied Science Pub., London (1982).Google Scholar
  9. 9.
    N. S. Taskoprulu, A. J. Barlow, and J. Lamb, Ultrasonic and visco-elastic relaxation in a lubricating oil, J. Acoust. Soc. Am. 33:278 (1961).CrossRefGoogle Scholar

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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