Product hunt josh hyper 60m product11/12/2022 (Auth.)Īblation and deceleration of mass-driver launched projectiles for space disposal of nuclear wastes In the second part it is shown that the asymmetry dependence observed in the potential describing the scattering of mass-3 particles from heavier nuclei actually originates from the isospin interaction, when triton and helion are treated as two members of an isospin doublet. In the first part of this paper, a description is given of how this potential is generated with a special emphasis on saturation and second order effect through a density dependent interaction between nucleon and mass-3 projectiles. Indeed it has been seen that the 'molecular type' potentials, with a soft repulsive core and a shallow attractive well used for heavy ion collisions can be used to fit the elastic scattering data of mass-3 projectiles also. In as much as mass-3 system is intermediate between heavy and light particles it will be interesting to investigate the scattering of mass-3 projectiles to see if it is possible to extend it to study the heavy ion scattering. It is well known that α-particle scattering shows most of the features which are observed in heavy ion scattering. The interaction between heavy ions is a subject of great interest. International Nuclear Information System (INIS) Scattering of mass-3 projectiles from heavy nuclei A projectile penetration model considering projectile mass loss is established in three stages, namely, cratering phase, mass loss penetration phase, and remainder rigid projectile penetration phase. The evolutional process of projectile mass loss and the effect of mass loss on penetration resistance are investigated using theoretical methods. But relatively speaking, the sensitivity of strength of projectile to mass abrasion is higher, which indicates that the effect of projectile material on mass abrasion is more dramatic than the hardness of aggregates.Ī Mass Loss Penetration Model to Investigate the Dynamic Response of a Projectile Penetrating Concrete considering Mass Abrasionįull Text Available A study on the dynamic response of a projectile penetrating concrete is conducted. The hardness of aggregates and the strength of projectile are also significant factors. Through theoretical analysis and numerical calculation, the results indicate that the initial impact velocity is the most important factor of mass abrasion. However, when the initial impact velocity is higher than 800 m/s, the “deforming/eroding body penetration†model should be adopted. The results show that, for the ogive-nose projectile with the CRH of 3 and aspect ratio of 7 penetrating the concrete of 35 MPa, the “rigid-body penetration†model is available when the initial impact velocity is lower than 800 m/s. Furthermore, the effect of mass abrasion on the penetration depth of projectile and the influence of hardness of aggregates and strength of projectile on penetration depth and mass loss are also analyzed. Projectile Nose Mass Abrasion of High-Speed Penetration into Concreteĭirectory of Open Access Journals (Sweden)įull Text Available Based on the dynamic spherical cavity expansion theory of concrete and the analysis of experimental data, a mass abrasion model of projectile considering the hardness of aggregates, the relative strength of target and projectile, and the initial impact velocity is constructed in this paper.
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