Abstract
Cavity expansion modeling is an important method for penetration analysis. Based on the Mohr-Coulomb criterion, a quasi-static cylindrical cavity expansion model for the penetration of confined concrete targets was proposed in this paper. Formulas of cavity expansion stresses calculation were obtained and the lateral confinement effects of steel tubes on the cavity expansion stresses were also investigated. Numerical results about the relationships between the ratio of tube wall thickness to tube radius and cavity expansion stresses were discussed.
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