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<p>A numerical model of heterogeneous material, based on the distribution of material components over given their spatial coordinates and fractions in the material, is presented. The propagation velocity of shock waves in a heterogeneous material is compared with experimental data and with the data of an additive mixture model. Simulation of the processes of penetration of rods into massive blocks of heterogeneous materials, as well as the processes of destruction of heterogeneous plates by spallation, shear, and plastic puncture is carried out. A model of periodically volume-reinforced metal–matrix composites is constructed, and a comparison of the results of calculations of high-speed impacts of space debris particles with screens made of such composites with experimental data is made. Procedures for identifying the effective dynamic yield strength of heterogeneous materials, as well as the ultimate values of spallation stresses and deformations are proposed.</p>

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Explosion, Impact, Protection. II. Interaction of Heterogeneous Bodies

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • E. I. Kraus,
  • V. M. Fomin,
  • I. I. Shabalin,
  • A. E. Kraus

摘要

A numerical model of heterogeneous material, based on the distribution of material components over given their spatial coordinates and fractions in the material, is presented. The propagation velocity of shock waves in a heterogeneous material is compared with experimental data and with the data of an additive mixture model. Simulation of the processes of penetration of rods into massive blocks of heterogeneous materials, as well as the processes of destruction of heterogeneous plates by spallation, shear, and plastic puncture is carried out. A model of periodically volume-reinforced metal–matrix composites is constructed, and a comparison of the results of calculations of high-speed impacts of space debris particles with screens made of such composites with experimental data is made. Procedures for identifying the effective dynamic yield strength of heterogeneous materials, as well as the ultimate values of spallation stresses and deformations are proposed.