Experimental determination of the coefficient of restitution for meter-scale granite spheres

Daniel D. Durda, Naor Movshovitz, Derek C. Richardson, Erik Asphaug, Alex Morgan, Alan R. Rawlings, Chris Vest

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We present results of a series of large-scale experiments to measure the coefficient of restitution for 1-m-diameter rocky bodies in impacts with collision speeds up to ∼1.5ms-1. The experiments were conducted in an outdoor setting, with two 40-ton cranes used to suspend the ∼1300-kg granite spheres pendulum-style in mutual contact at the bottoms of their respective paths of motion. The spheres were displaced up to ∼1m from their rest positions and allowed to impact each other in normal-incidence collisions at relative speeds up to ∼1.5ms-1. Video data from 66 normal-incidence impacts suggest a value for the coefficient of restitution of 0.83±0.06 for collisions between ∼1-m-scale spheres at speeds of order 1ms-1. No clear trend of coefficient of restitution with impact speed is discernable in the data.

Original languageEnglish (US)
Pages (from-to)849-855
Number of pages7
JournalIcarus
Volume211
Issue number1
DOIs
StatePublished - Jan 2011
Externally publishedYes

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granite
collision
coefficients
collisions
incidence
cranes
video data
crane
pendulums
experiment
trends
speed

Keywords

  • Asteroids
  • Collisional physics
  • Experimental techniques
  • Planetary formation
  • Planetary rings

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Durda, D. D., Movshovitz, N., Richardson, D. C., Asphaug, E., Morgan, A., Rawlings, A. R., & Vest, C. (2011). Experimental determination of the coefficient of restitution for meter-scale granite spheres. Icarus, 211(1), 849-855. https://doi.org/10.1016/j.icarus.2010.09.003

Experimental determination of the coefficient of restitution for meter-scale granite spheres. / Durda, Daniel D.; Movshovitz, Naor; Richardson, Derek C.; Asphaug, Erik; Morgan, Alex; Rawlings, Alan R.; Vest, Chris.

In: Icarus, Vol. 211, No. 1, 01.2011, p. 849-855.

Research output: Contribution to journalArticle

Durda, DD, Movshovitz, N, Richardson, DC, Asphaug, E, Morgan, A, Rawlings, AR & Vest, C 2011, 'Experimental determination of the coefficient of restitution for meter-scale granite spheres', Icarus, vol. 211, no. 1, pp. 849-855. https://doi.org/10.1016/j.icarus.2010.09.003
Durda DD, Movshovitz N, Richardson DC, Asphaug E, Morgan A, Rawlings AR et al. Experimental determination of the coefficient of restitution for meter-scale granite spheres. Icarus. 2011 Jan;211(1):849-855. https://doi.org/10.1016/j.icarus.2010.09.003
Durda, Daniel D. ; Movshovitz, Naor ; Richardson, Derek C. ; Asphaug, Erik ; Morgan, Alex ; Rawlings, Alan R. ; Vest, Chris. / Experimental determination of the coefficient of restitution for meter-scale granite spheres. In: Icarus. 2011 ; Vol. 211, No. 1. pp. 849-855.
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