Evidences of ductile and brittle responses of ceramics under shock wave loading

E. B. Zaretsky, V. E. Paris, G. I. Kanel, A. S. Savinykh

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


Compressive failure strength of brittle solids increases rapidly with the confining pressure whereas the yield stress of ductile materials is much less sensitive to the confinement. The presented experimental technique utilizes this difference in the effect of the confinement in order to reveal the mode of ceramics behavior under shockwave compression. A controlled confining pressure on the lateral surface of the disk-like ceramic specimen was produced by fixing the specimen into a shrink-fit metal sleeve. The effect of such confinement on the Hugoniot Elastic Limit should differ by a factor of about 2.5 for the materials whose ductile yielding is governed by Von Mises criterion and those obeyed the Griffith's criterion of brittle failure. Results of the tests performed exhibit unambiguously the ductile response of the alumina ceramics whereas the response of the boron carbide ceramics is certainly brittle.

Original languageEnglish
Pages (from-to)917-922
Number of pages6
JournalJournal De Physique. IV : JP
StatePublished - 1 Jan 2003
EventEurodymat 2003: 7th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading - Porto, Portugal
Duration: 8 Sep 200312 Sep 2003

ASJC Scopus subject areas

  • General Physics and Astronomy


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