Damping Characteristics of Metal Matrix Composites

Abstract

Metal matrix composites (MMC) with enhanced material damping can be potential structural materials to improve significantly the stability, control and reliability of space structures. Objectives of this investigation are: Identify the mechanisms and sources of damping in continuous fiber-reinforced MMC (Gr/Al and Gr/Mg) using in situ characterization techniques, determine the role of microstructural parameters (fiber volume, fiber orientation; interfiber spacing, grain size, precipitate morphology) in damping; define the role of the fiber-matrix interface in damping; develop high damping structural materials for space applications.

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 1988
Accession Number
ADA200004

Entities

People

  • Mohan S. Misra

Organizations

  • Martin Marietta

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Amplitude
  • Chemical Reactions
  • Composite Material Fabrication
  • Composite Materials
  • Dislocations
  • Energy
  • Frequency
  • Grain Size
  • Graphitic Materials
  • Heat Energy
  • Heat Treatment
  • Intermediate Frequencies
  • Materials
  • Metal Matrix Composites
  • Phase Transformations
  • Universities

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.

Technology Areas

  • Space