3D FE-simulation of high-velocity fragment perforation of reinforced concrete slabs

In a research project at FOA, various codes and three-dimensional material models for concrete were used in simulations of some test cases, e.g. impac t loads on beams, blast loads from explosives on slabs and projectile perfo ration through slabs. Numerical results were compared with observations in tests and reported. In this paper, simulations using LS-DYNA (LSTC, Livermo re, June 1997) for the projectile perforation of a 60 mm thick fibre-reinfo rced concrete slab with a velocity of 1500 m/s is presented. The material m odel used was Type 78 "Soil/Concrete" with erosion. The results were in fai rly good agreement with test results, but more studies are necessary to ass ess the sensitivity of certain material parameters. Relevant test procedure s and material data for the simulations are discussed in the paper. (C) 199 9 Elsevier Science Ltd. All rights reserved.