Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Journal of Technical Physics

1 2007

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: markers method

Sortuj według:

Ogranicz wyniki do:

Three-dimensional computer model of explosive forming of projectiles

Jach K., Owsik J., Świerczyński R.

Journal of Technical Physics

2007

Vol. 48, no 2

77-94

The paper presents a new three-dimensional variant of free particles method, used for modelling of explosive formation of projectiles and exemplary results of computer simulations. Physical model is based on gas-dynamics equations (interaction of detonation products with the charge elements) and mechanics of solids (deformation and driving of metal liner and housing). The equations of the problem were solved numerically using the free particles method together with the so-called markers method, allowing for modelling boundary conditions at the contacts of media having various physical properties and any complex shapes. Significant virtue of the markers method was shown, i.e., the possibility of full automation of a calculation process, even for very complex and dynamically changing boundary conditions, e.g., during projectiles fragmentation. Many test solutions have been obtained and analysed, having in view the influence of three-dimensional effects on projectiles fragmentation and rotation. These aspects of explosive forming of projectiles were indicated which can be investigated using only 3D codes, e.g., errors and inaccuracies of metal liners manufacturing, forming of projectile fins, etc.