Materials Degradation and Fatigue Under Extreme Conditions

Abstract

This AFOSR URI addressed complex research problems of materials degradation and fatigue in aerospace structures in severe or extreme environments. A better understanding of materials degradation and flaw initiation dynamics was achieved through a multi-disciplinary research program encompassing chemistry, surface physics, materials science and mechanics, both experimental and theoretical. The Subprojects were as follows: (1) Surface Induced Degradation of Fluorocarbon Lubricants; (2) Molecular Tribology of Perfluoroether Lubricants; (3) Fluids, Including Lubricants Under Extreme Conditions of High Pressure/High Temperature and Confinement; (4) Surface Crack Propagation Under Combined Mechanical and High Pressure Fluid Loading; and (5) Lubricant Assisted Fatigue Crack Growth in Ceramics.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 29, 1997
Accession Number
ADA334785

Entities

People

  • Jiri Jonas

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aging (Materials)
  • Ceramic Materials
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Friction
  • Lubricants
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanics
  • Modulus Of Elasticity
  • Polymer Chemistry
  • Surface Chemistry
  • Surface Properties

Readers

  • Structural Health Monitoring of Composite Structures.
  • Technical Research and Report Writing.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Space