Reinforcement Mechanisms in Metal-Matrix Composites.

Abstract

A finite-element program was composed and tested for analyzing the behavior of unidirectional metal-matrix composites under transverse loads of sufficient magnitude to cause yielding, flow, and failure. A model for filament-matrix interface debonding was designed and used to predict the behavior of transversely loaded unidirectional, 50-v/oB/Al(6061-O and -T6) and Be/Ti (6 Al-4V) when such failure occurs. Brief studies were made of fiber shape (elliptical versus circular) and of plastic-zone growth from yield to failure in B/Al composites. A tensile test on a specially prepared W/Al composite was used to verify one calculation, and fabrication and testing of a Be(ribbon)/Al composite were attempted. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0756257

Entities

People

  • Francis W. Crossman
  • John Grant
  • Robert F. Karlak

Organizations

  • Lockheed Martin Missiles and Space

Tags

DTIC Thesaurus Topics

  • Composite Material Fabrication
  • Composite Materials
  • Fabrication
  • Filaments
  • Material Forming Processes
  • Materials Processing
  • Metal Matrix Composites
  • Shape
  • Unidirectional

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.