Mj. Forrestal et Dy. Tzou, A SPHERICAL CAVITY-EXPANSION PENETRATION MODEL FOR CONCRETE TARGETS, International journal of solids and structures, 34(31-32), 1997, pp. 4127-4146
We developed a spherical, cavity-expansion penetration model for concr
ete targets. Target constitutive-descriptions idealized pressure-volum
etric strain as incompressible or linear compressible and idealized sh
ear strength-pressure as Mohr-Coulomb with a tension cutoff. We showed
these idealized material descriptions were reasonable approximations
to triaxial material data. Predictions from the compressible penetrati
on model are in good agreement with depth of penetration data for a 30
.5-mm-diameter, 1.60 kg, ogive-nose, rod projectile for striking veloc
ities to 1100 m/s. (C) 1997 Elsevier Science Ltd.