Dynamic compressibility of high-porosity dampers of thermal and shock loadings. Modeling and experiment

Anatoly Bragov, Alexander Konstantinov, Andrey Lomunov, Anatoly Sadyrin, Ivan Sergeichev, Leopold Kruszka

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

High-porosity materials, such as chamotte and mullite, possess a heat of fusion. Owing to their properties, these materials can be used with success as damping materials in containers for airplane, automobile, etc. transportation of radioactive or highly toxic materials. Experimental studies of the dynamic properties have been executed with using some original modifications of the Kolsky method. These modified experiments have allowed studying the dynamic compressibility of high-porosity chamotte at deformations up to 80 and amplitudes up to 50 MPa. The equations of the mathematical model describing shock compacting of chamotte as a highly porous, fragile, collapsing material are presented. Deformation of high-porous materials at non-stationary loadings is usually accompanied by fragile destruction of interpore partitions as observed in other porous ceramic materials. Comparison of numerical and experimental results has shown their good conformity.

Original languageEnglish
Pages (from-to)1183-1188
Number of pages6
JournalInternational Journal of Modern Physics B
Volume22
Issue number9-11
DOIs
Publication statusPublished - 30 Apr 2008
Externally publishedYes

Keywords

  • Chamotte
  • High-porosity dampers
  • Mullite
  • Shock compacting

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