Damage Assessment in TiB2 Ceramic Armor Targets

Abstract

The interaction between long rods and ceramics is only partially understood; however, this understanding is essential in the design of improved performance of impact-resistant materials and armor system design applications. The current work takes a preliminary look into the modem mythology surrounding the formation of radial cracking in ceramics during ballistic penetration. Tests were conducted using a 32-g tungsten alloy laboratory penetrator with a length to diameter ratio (L/D) = 20 at a nominal impact velocity of 1,600 m/s. Testing evaluated both prestressed and unstressed titanium diboride (TiB2) ceramic tiles. Evaluation of the damage included microstructural analysis using a scanning electron microscope (SEM) with a Robinson backscatter detector for surface structure, the x-ray computed tomography (CT) nondestructive technique to completely scan the interior of each disk, and limited analytical modeling of the stress state.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2001
Accession Number
ADA397581

Entities

People

  • Joseph M. Wells
  • Kevin Doherty
  • Nevin L. Rupert
  • William H. Green

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Damage Assessment
  • Detectors
  • Electron Microscopes
  • Electron Microscopy
  • Engineering
  • Internal Pressure
  • Jet Propulsion
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanics
  • Military Research
  • Silicon Carbide
  • Three Dimensional
  • Tomography
  • Two Dimensional
  • X-Ray Computed Tomography

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials

Technology Areas

  • Microelectronics