Nanoscale Characterization of Failure Processes in Polymer Nanocomposites

Abstract

This project was focused on two areas of investigation: application of novel displacement modulation techniques for nanoindentation based viscoelastic characterization; and the use of acoustic emission characterize nanoindentation induced fracture in brittle materials and advanced. A new displacement modulation technique has been developed and employed for determining the storage and loss moduli of viscoelastic polymers, as a function of frequency. This new technique represents a highly superior approach in comparison will all other existing techniques for dynamic indentation. Acoustic emission sensing has been established as a robust technique for quantifying failure in brittle materials, advanced ceramics and a new type of amorphous ceramic material. Collaboration with various researchers at the US Army Research Laboratory at Aberdeen Proving Ground provided fruitful benefits.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2005
Accession Number
ADA447166

Entities

People

  • Raman P. Singh

Organizations

  • State University of New York

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Ceramic Materials
  • Composite Materials
  • Equations
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Phase Transformations
  • Resins
  • Silicon Carbide
  • Stiffness
  • Stresses

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Nanocomposite Materials Science