Long-Rod Penetration into Intact and Pre-Damaged SiC Ceramic

Abstract

Penetration experiments with long rods into SiC ceramics are available for two rod materials over a wide range of impact velocities [1-2]. The ceramics used in these experiments were initially intact, without cracks or other induced damage. The penetration response of three types of pre-damaged SiC was also investigated [3]. The pre-damaged targets, which were confined in 7075 aluminum sleeves consisted of 1) thermally shocked (many non-contiguous cracks), 2) thermally shocked with mechanical load/unload cycling (in-situ comminuted), and 3) compacted powder. Further experiments were conducted on intact and thermally shocked (predamaged) SiC-N that overlapped the previous test data, and to extend the data to lower impact velocities. The results of these additional experiments were different than expected; this article describes the experiments and comparisons with previous data.

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Document Details

Document Type
Technical Report
Publication Date
Jun 27, 2008
Accession Number
ADA594381

Entities

People

  • Arthur Nickolls
  • Charles Anderson Jr.
  • Dennis Orphal
  • Thilo Behner
  • Timothy J Holmquist

Organizations

  • Southwest Research Institute

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DTIC Thesaurus Topics

  • Aluminum
  • Ceramic Materials
  • Diameters
  • Elements
  • Experimental Data
  • Fabrication
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  • Fungi
  • Information Science
  • Linear Regression Analysis
  • Materials
  • Measurement
  • Modulus Of Elasticity
  • Regression Analysis
  • Silicon Carbide
  • Technical Ceramics
  • X Rays

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