Abstract
Plate impact experiments were conducted on polycrystalline beryllium samples of four different textures to determine the effect of texturing on the wave propagation and spall strength of beryllium. The samples were fabricated from a single billet of hot-pressed beryllium powder and characterized by chemical composition and grain size; the degree of texturing was quantified by basal plane pole figure analyses. Results indicate that (1) although the nominal spall strength is not significantly altered by the texturing, the distribution and character of the spall damage does vary markedly with texture; and (2) the elastic precursor wave is severely ramped in the as-pressed material, but appears as a sharply-rising wave in the highly textured material. A model for unrelaxed thermal microstresses is advanced to explain the suppression of the elastic precursor wave in the as-pressed beryllium.
This work was supported by the U. S. Atomic Energy Commission.
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© 1973 Plenum Press, New York
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Stevens, A.L., Pope, L.E. (1973). Wave Propagation and Spallation in Textured Beryllium. In: Rohde, R.W., Butcher, B.M., Holland, J.R., Karnes, C.H. (eds) Metallurgical Effects at High Strain Rates. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8696-8_26
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DOI: https://doi.org/10.1007/978-1-4615-8696-8_26
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