New Aspects of Fatigue and Fracture Mechanics.

Abstract

The significance of the results of Scanning Electron Microscope studies of the microstructural deformation and damage processes in different types of metals for the formulation of an engineering approach to the problem of fatigue and of its relation to fracture mechanics is discussed. The futility of attempts to develop a unique model of fatigue based either on physical theories of lattice defects or on mechanical theories of plastic strain accumulation is demonstrated, and the usefulness of fracture-mechanics concept applied to microcrack development and combined with probabilistic considerations based on order statistics is illustrated.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1973
Accession Number
ADA011353

Entities

People

  • Alfred M. Freudenthal

Organizations

  • George Washington University

Tags

DTIC Thesaurus Topics

  • Data Science
  • Electron Microscopes
  • Fracture (Mechanics)
  • Information Science
  • Mechanics
  • Microscopes
  • Order Statistics
  • Physical Theories
  • Physics
  • Scanning Electron Microscopes
  • Statistics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Materials Science (Mechanical Engineering).

Technology Areas

  • Microelectronics