publication . Article . 2017

Laboratory tests of catastrophic disruption of rotating bodies

A.J.W. Morris; M.J. Burchell;
Open Access English
  • Published: 26 May 2017
  • Publisher: Academic Press Inc
  • Country: United Kingdom
Abstract The results of catastrophic disruption experiments on static and rotating targets are reported. The experiments used cement spheres of diameter 10 cm as the targets. Impacts were by mm sized stainless steel spheres at speeds of between 1 and 7.75 km s−1. Energy densities (Q) in the targets ranged from 7 to 2613 J kg−1. The experiments covered both the cratering and catastrophic disruption regimes. For static, i.e. non-rotating targets the critical energy density for disruption (Q*, the value of Q when the largest surviving target fragment has a mass equal to one half of the pre-impact target mass) was Q* = 1447 ± 90 J kg−1. For rotating targets (median ...
free text keywords: QB651
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