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Nicolao C. Lima on Muck Rack

Nicolao C. Lima

As seen in: Physical Review B
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Articles

Impact craters formed by spinning granular projectiles

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By Douglas Carvalho, Rua Mendeleyev, Nicolao C. Lima, Erick M. Franklin
| Physical Review B
Craters formed by the impact of agglomerated materials are commonly observed in nature, such as asteroids colliding with planets and moons. In this paper, we investigate how the projectile spin and cohesion lead to different crater shapes. For that, we carried out discrete element method computations of spinning granular projectiles impacting onto cohesionless grains for different bonding stresses, initial spins, and initial heights.
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Roles of packing fraction, microscopic friction, and projectile spin in cratering by impact

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By Douglas Carvalho, Rua Mendeleyev, Erick M. Franklin, Nicolao C. Lima
| Physical Review B
Abstract From small seeds falling from trees to asteroids colliding with planets and moons, the impact of projectiles onto granular targets occurs in nature at different scales. In this paper, we investigate open questions in the mechanics of granular cratering, in particular, the forces acting on the projectile and the roles of granular packing, grain-grain friction, and projectile spin.
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