Experiments and simulations on projectile impact to circular and rectangular plates made of aluminum alloy 2024-T3 were carried out. Ballistic limit and deformation of circular plates and rectangular plates at impact point were examined. The experimental results were compared with the simulation ones which calculated using the materials properties experimentally obtained. The effects of mesh size and fracture strain on both the crack limit velocity and the perforate limit velocity were discussed.
The present study focuses on the derivation of effective elastic properties for two-dimensional orthotropic elastic continuum containing several different distributions of cracks. The emphasis of the study is placed on the crackinduced anisotropy and comparison of the results derived using the class of mean field theory.
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