摘要: Abstract In this paper we derived the pressure required to open a spherical cavity in an infinite brittle ceramic at constant speed. The material is assumed crack upon reaching its elastic limit. Subsequent failure of cracked due compressive renders pulverization material. pulverized follow Mohr–Coulomb type constitutive behavior. results show that high expansion speeds comminuted region outruns region, i.e. disappears. At very zone propagation speed saturates level slightly below longitudinal wave Limited comparison with experimental penetration resistance shows reasonable agreement between theory and experiment.
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