Advertisement

Cryomechanics and Double-Notch Interlaminar Shear Strength of G-10Cr Glass-Cloth/Epoxy Laminates

  • Y. Shindo
  • R. Wang
  • K. Horiguchi
  • S. Ueda
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 44)

Abstract

We discuss the interlaminar shear behavior of G-10CR glass-cloth/epoxy laminates through experimental and analytical characterizations. The interlaminar shear tests were carried out with double-notch shear specimens at room temperature, 77K and 4K to evaluate the interlaminar shear strength (ILSS) of G-10CR glass-cloth/epoxy laminates. The double-notch shear specimen was loaded on its ends in compression with a supporting jig to prevent buckling. These tests were conducted in accordance with ASTM D3846-79. The effects of temperature, specimen thickness and notch separation on the apparent ILSS are shown graphically. Fracture surfaces were examined by scanning electron microscopy (SEM) and optical microscopy to verity the failure mechanisms. A three-dimensional finite element analysis was also performed to investigate the effect of specimen thickness and notch separation on the shear stress distribution in the expected fracture plane. Effective elastic moduli were determined under the assumption of uniform strain inside the representative volume element. The numerical findings are then correlated with the experimental results.

Keywords

Representative Volume Element Specimen Thickness Fracture Plane Shear Stress Distribution Interlaminar Shear Strength 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Standard test methods for interlaminar shear strength of structural reinforced plastics at elevated temperatures, ASTM designation D2733–70, in:“1979 Annual Book of ASTM Standards,” American Society for Testing and Materials, Philadelphia (1979), p. 558.Google Scholar
  2. 2.
    M. B. Kasen, Current status of Interlaminar Shear Testing of Composite Materials at Cryogenic Temperatures, Advances in Cryogenic Engineering, 36: 787 (1990).Google Scholar
  3. 3.
    H. Becker, Problems of Cryogenic Interlaminar Shear Strength ‘testing, Advances in Cryogenic Engineering, 36: 827 (1990).Google Scholar
  4. 4.
    T. Okada and S. Nishijima, Investigation of Interlarinar Shear Behavior of Organic Composites at Low Temperatures, Advances in Cryogenic Engineering, 36: 811 (1990).Google Scholar
  5. 5.
    Standard test method for in-plane shear strength of reinforced plastics, ASTM designation D3846–79, in:“1987 Annual Book of ASTM Standards,” American Society for Testing and Materials, Philadelphia (1987), p.274.Google Scholar
  6. 6.
    H. T. Hahn and R. Pandey, Investigation of Interlaminar Shear Behavior of Organic Composites at Low Temperatures, Journal of Engineering Materials and Technology, 116: 517 (1994).CrossRefGoogle Scholar
  7. 7.
    M. B. Kasen, G. R. MacDonald, D. H. Beekman,.1r., and R. E. Schramm, Mechanical, Electrical, and thermal Characterization of G-10CR and G-11CR Glass-Cloth/Epoxy Laminates between Room Temperature and 4K, Advances in Cryogenic Engineering, 26: 235 (1980).Google Scholar
  8. 8.
    S. Ueda and Y. Shindo, Thermal Singular Stresses and Mechanical Properties in Cracked Glass-Fiber Reinforced Plastics at. Low Temperatures, Theor. App]. Mech., 40: 429 (1991).Google Scholar
  9. 9.
    Z. Hashin, Theory of Fiber Reinforced Materials, NASA-CR-1974, NASA Langley Research Center, Hampton, VA(1972).Google Scholar
  10. 10.
    M. B. Kasen, Cryogenic Properties of Filamentary-Reinforced Composites: an Update, Cryogenic, 6: 323 (1981).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Y. Shindo
    • 1
  • R. Wang
    • 1
  • K. Horiguchi
    • 1
  • S. Ueda
    • 1
  1. 1.Graduate School of EngineeringTohoku UniversitySendaiJapan

Personalised recommendations