"Strength And Rain Erosion Studies Of I.R. Materials"

J. E. Field; R. J. Hand; C. J. Pickles

doi:10.1117/12.960789

11 September 1989 "Strength And Rain Erosion Studies Of I.R. Materials"

J. E. Field, R. J. Hand, C. J. Pickles

Proceedings Volume 1112, Window and Dome Technologies and Materials; (1989) https://doi.org/10.1117/12.960789
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

This paper reviews recent liquid impact work in this laboratory. The research has included a theoretical study of the early stages of a liquid/solid collision where compressible effects in the liquid dominate the behaviour; experiments with two-dimensional gelatine shapes which combined with high-speed schlieren photography have allowed shock structures and jetting to be recorded; the development of techniques such as the jet method for producing controlled liquid/solid collisions in the laboratory, and studies of damage production in a wide range of aerospace materials. Quantitative studies of damage using post impact ("residual strength") measurement are described. Of particular interest are the "threshold velocities" for strength loss and the extent of strength loss following impact. Research on zinc sulphide has included a study of the effect of grain size on the hardness and Kic values of the material. Data are presented on a range of glasses, zinc sulphide, sapphire and germanium.

Citation Download Citation

J. E. Field, R. J. Hand, and C. J. Pickles ""Strength And Rain Erosion Studies Of I.R. Materials"", Proc. SPIE 1112, Window and Dome Technologies and Materials, (11 September 1989); https://doi.org/10.1117/12.960789

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