The Hysteresis and Incremental Collapse of Complex Structures: A paradigm for the Fatigue Failure of Materials

Abstract

The basic objective of this research program is to characterize the development of material fatigue by means of stress-strain hysteresis and acoustic emission measurements. We have conjectured that the accumulation and organization of damage in material fatigue is similar to the progressive failure of structures under cyclic loading. And, specifically, that the endurance limit of a material in fatigue is the analogue of the incremental collapse load of a structure. Since the principal features of the service life and failure of structures can be completely described by hysteresis methods, it is plausible that similar means can be used to characterize the inception and organization of microplastic processes in materials. All of the experimental results obtained during the current research program confirm these conjectures.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1991
Accession Number
ADA234831

Entities

People

  • S. A. Guralnick
  • T. Erber

Organizations

  • Illinois Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Civil Engineering
  • Collapse
  • Elastic Properties
  • Energy Transfer
  • Fracture (Mechanics)
  • Hysteresis
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Properties
  • Stresses
  • Tensile Properties
  • Tensile Strength
  • Yield Strength

Readers

  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design