Instrumented Hertzian indentation of armor ceramics

A. A. Wereszczak, Reuben H. Kraft

Research output: Contribution to journalConference article

6 Scopus citations

Abstract

There is commonality between the resulting damage in ballistically tested ceramics and Hertzian indentation. In an effort to study the parameters associated with the damage from the latter, a new-instrumented indentation test system was fabricated to facilitate the evaluation of (typically very hard) candidate armor ceramics. The indentation results from the testing with this system indicate that the utilization of: a diamond indenter; ultra high-resolution displacement measurement; a controlled loading/unloading waveform; and a simple mechanical analog model can be used in combination to quantify quasi-plastic yield and ring-crack initiation stresses that may be subsequently used to generate a plasticity-fracture map all with a single indent. A description of the test system and the indentation testing and evaluation of a hot-pressed SiC are presented.

Original languageEnglish (US)
Pages (from-to)53-64
Number of pages12
JournalCeramic Engineering and Science Proceedings
Volume23
Issue number3
StatePublished - Dec 31 2002
Event26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A - Cocoa Beach, FL, United States
Duration: Jan 13 2002Jan 18 2002

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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