Abstract
AbstractThe study shows the great potential and valuable impact of research on high-energy absorption building materials in the area of protect built components of critical infrastructures. The possibility of testing samples of various materials (granular, cellular and polymer materials) based on Hopkinson bar technology in various configurations of the sample and measuring bars settings was discussed. An example of a split Hopkinson pressure bar test stand with its components is shown. The dynamic behavior of energy-absorbing building materials was presented in more detail on the example of sand, wood and foam in the form of strain - stress and strain - strain rate graphs depending on various variables, e.g. different sand moisture or wood sample temperature. In addition, in the subject of high-energy absorption materials, definitions of issues were discussed along with example diagrams of dynamic analysis: energy absorption Q(ε), energy absorption efficiency E(ε) and ideal energy absorption efficiency I(ε).KeywordsHopkinson bar techniqueSHPBHigh-energy absorption material
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