Shock compressibility of porous tungsten, molybdenum, copper, and aluminum in the low pressure domain

Autor: A. A. Bakanova, Yu. N. Sutulov, I. P. Dudoladov
Rok vydání: 1974
Předmět:
Zdroj: Journal of Applied Mechanics and Technical Physics. 15:241-245
ISSN: 1573-8620
0021-8944
Popis: Results are presented of an experimental study of the behavior of four porous metals, tungsten, molybdenum, copper, and aluminum with an initial density corresponding to ≈30 and 50% of the density of the continuous (solid) material under loading by shocks with intensity between 10–800 kbar. The behavior of the shock compression curves in the p-ϱ plane shows that for some pressure p* the compression of the porous substance to the state of a continuous material is completed. At initial densities ≈50% of the continuous substance, the values are p*=65, 40 and 35 kbar, respectively, for W, Mo, and Cu. At lesser densities (≈30% of the density of the continuous substance), the values of p* are approximately halved as compared with those mentioned. The state of complete packing of the porous material into a monolithic solid was not determined in aluminum in the pressure range examined 6.5–200 kbar.
Databáze: OpenAIRE