Research on the Radial Crater Growth Theoretical Model of Energetic Jet Penetrating Concrete
In view of the problem that the rear stage projectile can not follow smoothly due to the insufficient aperture of shaped charge penetrating into the concrete target,based on the analysis of the mechanical properties and damage modes of concrete,and based on the dynamic spherical cavity expansion theory,the physical process of the radial crater of the concrete target by the energetic jet is analyzed. By introducing the energy release parameters of the energetic jet,an innovative engineering calcu-lation model for radial expansion of concrete at different penetration speeds and experimental verification is conducted. The re-sults show that the error between the numerical results of engineering calculation model and test data is less than 10％. The model can be extended to the calculation of the expansion of the plain concrete structure with various strength by the jet,and has certain guiding significance for the structural design of the front stage shaped charge of the tandem penetration warhead.
万方数据
维普
