Letter | Published:

Mechanism for shear delamination under dynamic loading

Nature volume 257, pages 216217 (18 September 1975) | Download Citation

Subjects

Abstract

WE describe here a debonding mechanism for interfaces between dissimilar materials in conditions of dynamic loading, and we deal, in particular, with coated substrates that are impacted by solid or liquid projectiles. Protective coatings are commonly used to enhance the resistance of materials to impact erosion; for example, non-metallic fibre-reinforced composite materials are found to be very susceptible to impact erosion unless a suitable thin coating is applied. For these composites, certain elastomers can be successful as coating materials, even though they do not, intrinsically, possess high strength. Coatings of this type reduce the pressures that are transmitted to the substrate by presenting a lower dynamic impedance to the impacting body. The interfacial adhesion between the coating and substrate is of great importance because it enables the substrate to reinforce the coating by restricting the lateral strain, and therefore the stress, within the coating. When adhesion is lost, the coating itself becomes quickly eroded. Thus, the bond between the coating and substrate is often of great significance to the success of a coating–substrate system.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , W.A.D.C. Tech. Rep. TR53–192, pt.X. (1957).

  2. 2.

    , and , J. Mater. JMSLA, 5, 3, 698–713 (1970).

  3. 3.

    , , and , Proc. 3rd Int. Conf. on Rain Erosion and Allied Phenomena, RAE, Farnborough, 303–324 (RAE Farnborough, 1970).

  4. 4.

    , Proc. 10th Int. Cong. on High-speed Photography, Nice, 438–444 (Association Nationale de la Recherche Technique, Paris, 1972).

  5. 5.

    , thesis, Univ. Cambridge (1974).

  6. 6.

    , Stress Waves in Solids (Clarendon, Oxford, 1953).

  7. 7.

    , and , Proc. R. Soc., A263, 433–450 (1961).

  8. 8.

    , and , Proc. llth Int. Congr. on High-speed Photography, London, 442–447 (1974).

  9. 9.

    , , and , Elastic Waves in Layered Media (McGraw-Hill, New York, 1957).

  10. 10.

    , Reflection and Refraction of Progressive Seismic Waves (McGraw-Hill, New York, 1962).

  11. 11.

    , and , Exp. Mech., 11, 210–216 (1971).

  12. 12.

    , and , Exp. Mech., 14, 129–137 (1974).

  13. 13.

    , Fibre Sci. Tech., 1, 113–121 (1968).

  14. 14.

    , and , J. compos. Mater., 4, 444–461 (1970).

Download references

Author information

Affiliations

  1. Physics and Chemistry of Solids, Cavendish Laboratory, Madingley Road, Cambridge, UK

    • D. A. GORHAM
    •  & J. E. FIELD

Authors

  1. Search for D. A. GORHAM in:

  2. Search for J. E. FIELD in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/257216a0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.