Hydrocode Modeling of a High-velocity Impact of an Asteroid Particle on a Steel Surface

N. A. Makhutov, Yu. G. Matvienko, M. A. Bubnov

Protecting the Earth against Collisions with Asteroids and Comet Nuclei, In: A. M. Finkelstein, W. F. Huebner, V. A. Shor (Eds) Proceedings of the International Conference “Asteroid-Comet Hazard-2009”, StP: Nauka, 216–221 (2010)

Ключевые слова: Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), high-velocity impact of an asteroid particle on a steel surface, hydrocode modeling, physical-mathematical modeling of hyper-velocity impacts, asteroid protection systems, critical nuclear and military objects, numerical modeling, criteria of extreme states of solids, Lagrangian-Eulerian algorithm (ALE), LS-DYNA 3D hydrocode, a linear-polynomial model with phase transformations, a physical picture of deformation and fracture under hyper-velocity impacts, parameters of the produced crater

Аннотация

Present work deals with physical-mathematical modeling of hyper-velocity impacts up to 80 km/s. This problem is very important for asteroid protection systems and other critical nuclear and military objects