Modeling asteroid collisions and impact processes

Abstract

As a complement to experimental and theoretical approaches, numerical modeling has become an important component to study asteroid collisions and impact processes. In the last decade, there have been significant advances in both computational resources and numerical methods. We discuss the present state-of-the-art numerical methods and material models used in "shock physics codes" to simulate impacts and collisions and give some examples of those codes. Finally, recent modeling studies are presented, focussing on the effects of various material properties and target structures on the outcome of a collision.

Chapter to appear in the Space Science Series Book: Asteroids IV. Includes minor corrections

References in corpus (6)

• A hit-and-run Giant Impact scenario
• Full Numerical Simulations of Catastrophic Small Body Collisions
• Collisional Stripping and Disruption of Super-Earths
• SPH calculations of asteroid disruptions: The role of pressure dependent failure models
• Post-Impact Thermal Evolution of Porous Planetesimals
• Numerical Simulations of Collisional Disruption of Rotating Gravitational Aggregates: Dependence on Material Properties

Cited by in corpus (9)

• Coupling SPH and thermochemical models of planets: Methodology and example of a Mars-sized body
• SPH calculations of Mars-scale collisions: the role of the Equation of State, material rheologies, and numerical effects
• Fragment properties from large-scale asteroid collisions: I: Results from SPH/N-body simulations using porous parent bodies and improved material models
• SPH/N-body simulations of small (D = 10 km) asteroidal breakups and improved parametric relations for Monte-Carlo collisional models
• Exogenous delivery of water to Mercury
• The tensile strength of compressed dust samples and the catastrophic disruption threshold of pre-planetary matter
• An N-body approach to modeling debris and ejecta off small bodies: Implementation and application
• Gas permeability and mechanical properties of dust grain aggregates at hyper- and zero-gravity
• The Influence of Central Body Tides on Catastrophic Disruptions of Close-in Planetary Satellites