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2 Materials Science Poland

2 2004

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A shock-wave model of the effect of superdeep penetration of powder particles into metallic materials

100%

Kheifets A. E. , Zel'dovich V. I. , Frolova N. Y. , Khomskaya I. V.

tom Vol. 22, No. 2

117--121

A shock-wave model of the effect of superdeep penetration of explosion accelerated powder particles into metallic materials has been created. A criterion for the phenomenon proceeding by explosive loading of a target by a flow of particles is obtained. It is established that a flow action results in an homogeneous radial stretching of the target material. The stretching occurs by mobile cavities which carry particles into the target material.

Propagation and interaction of dodecahedral converging shock waves in steel balls

75%

Kheifets A. E. , Zel'dovich V. I. , Khomskaya I. V. , Frolova N. Y. , Litvinov B. V. , Purygin N. P. , Buzanov V. I.

tom Vol. 22, No. 2

123--129

Physical metallurgical and computer simulation methods were used to study the propagation and interaction of shock waves in steel balls subjected to convergent dodecahedrally symmetric shock waves. Conditions for energy cumulation and the realization of regular and irregular types of shock wave interactions were studied. Based on microstructural investigations of intact samples, the parameters of the shockwave loading, namely pressure, residual temperature, and the density of the material were calculated.