Relationship between particle size, cohesive forces and asteroid strength
What is it about?
We simulated asteroids as self-gravitating aggregates formed by thousands of spherical particles. Then, these aggregates were squeezed from opposite sides which gave us a measure of their strength. We then related this measured strength to the aggregate size, particle size and particle-particle cohesive forces.
Why is it important?
In the asteroid environment, with just a tiny fraction of the gravity of Earth, cohesive forces between small pebbles and dust control the overall asteroid strength. However, a clear relationship between the material parameters of the grains forming the asteroids and asteroid strength has not yet been established. This work is the first step towards that.
The following have contributed to this page: Dr Diego P Sánchez Lana