PLASTIC STRAINS AND ENERGY DENSITY IN CRACKED PLATES. PART II. COMPARISON WITH ELASTIC THEORY,

Abstract

Data from the ductile materials reported in Part I are compared to planar elastic results. The experimental and theoretical strains are markedly different, both in angular distribution and in decay with distance from the crack tip. The distortional energy density data also differ with theory, in terms of angular distribution, but their radial behavior is closer to the inverse distance relation of elasticity. The total plastic energy release rate is inferred from the data; it is considerably in excess of the critical rate, the Giffith strain energy release rate for onstable crack extension. This disparity is discussed in terms of the regions where energies are released. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0620161

Entities

People

  • J. L. Swedlow
  • W. W. Gerberich

Organizations

  • Jet Propulsion Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cooperation
  • Crack Tips
  • Cracks
  • Disparities
  • Elastic Properties
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Stress Analysis
  • Stresses

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Regression Analysis.
  • Structural Dynamics.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference