Tidal disruption of solid bodies

Details Tidal disruption of solid bodies Tidal disruption of solid bodies

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...88...24d&link_type=abstract

Icarus (ISSN 0019-1035), vol. 88, Nov. 1990, p. 24-38.

Computer Science

46

Fracture Mechanics, Icy Satellites, Roche Limit, Solid Mechanics, Tides, Perturbation Theory, Shear Stress, Stony Meteorites

Scientific paper

The problem of stress, strain, and breakup in solid satellites and stray bodies subject to tidal perturbations is presently addressed in view of three novel considerations. After presenting a new analytic solution for the stress tensor in a homogeneous and compressible elastic sphere, where the inclusion of compressibility alters stresses by several percent, realistic failure criteria are noted to demonstrate the general failure of such ductile bodies as iron meteoroids by plastic shear, while brittle ice bodies fail by either tensile or shear fracture. A reexamination of crack propagation after initial failure allows the diverse breakup criteria to be reconciled.

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