Experimental Study of Penetration of Steel Projectile Into Fine-grained Concrete of Various Compositions
Year: 2025
Type: article
Abstract: An experimental study of penetration of steel cylindrical impactors with an ogive head into fine-grained concrete of various compositions was conducted. In the course of the study, the dependences of the penetration resistance force on time for an ogive impactor at various impact velocities in an inverted experiment were determined. The experiments were carried out on the PG-57 installation using a measuring rod with strain gauges glued to it. A 57 mm pneumatic gun was used to accelerate containers with fine-grained concrete. Impact velocities varied from 40 m/s to 260 m/s. Concrete mixtures with different cement/sand ratios were studied. For these mixtures, the dependences of the resistance force on time and the maximum penetration resistance forces were determined. During the experiments, it was found that the maximum penetration resistance force increases with increasing cement concentration in the concrete mixture. The lowest values of the maximum resistance force were obtained for the concrete mixture 1 to 10. With increasing cement concentration in the concrete mixture, the maximum resistance force to penetration of the ogive striker increases approximately two to three times. For three compositions 1 to 10, 1 to 5, 1 to 2, a study was conducted on the effect of the impact speed on the value of the maximum resistance force to penetration for a cylindrical striker with an ogive head. The resistance force to penetration increases with increasing impact speed to speeds of 180–200 m/s. With a further increase in impact speed above 200 m/s, the resistance force to penetration remains almost constant.
Authors: V.V. Balandin, Vl.Vl. Balandin
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Funder: Russian Science Foundation
OpenAlex ID: W4409620768