Shear strength of aluminum upon shockless compression

Experiments on the determination of the dynamic yield point of AD-1 aluminum upon shockless loading by the method of principal stresses are reported. The results indicate the increase in the yield point upon shockless loading compared to shock loading Translated fromFizika Goreniya i Vzryva, Vol. 35, No. 6, pp. 115–118, November–December 1999     

Evolution of weak shock waves in dense media

Relations describing the evolution of a weak shock wave (SW) in a dense medium with account of its attenuation and spreading are derived. The evolution is presented as a result of superposition of two processes: propagation of a stepped weak shock wave and pursuit of the shock by a rarefaction wave.Moscow. Translated from Fizika Goreniya i Vzryva, Vol. 31, No. 2, pp. 139–143, March–April, 1995.     

Mechanism of dust ignition in incident shock waves

A study is made of dust ignition during transient interaction of an incident shock wave with an extended dust cloud. It has been shown experimentally that in the presence of dispersed phase with volume concentration of 10^–3 the temperature behind a shock wave with Mach number M_s=4.5 can exceed the ambient one by 400 K or more. A physical mechanism is proposed for carrier phase heating, based on the effect of supersonic flow braking behind the shock wave under constraints created by dust particles during velocity relaxation. The gasdynamic functions are obtained as analytic functions of the flow Mach number M. In particular, it is shown that the equation T/T₀=M₀/M is valid for the temperature. The form of M as a function of dispersed-phase parameters and the quantitative nonsteadiness criterion are found. The function M was found to agree well with experiment.Novosibirsk. Translated from Fizika Goreniya i Vzryva, Vol. 29, No. 3, pp. 143–148, May–June, 1993.     

Assessment of decaying meteoric-impact shock waves in metals

Combustion, Explosion, and Shock Waves -