EFFECT OF STRAIN RATE ON THE DEFORMATIONAL BEHAVIOR OF ROCK.

Abstract

Experimental results for four different rock types in which the microscopic mechanisms of deformation vary in their contribution to the total deformation indicate that cataclastic deformation is independent of time. It appears that the physical behavior of materials deforming cataclastically can thus be evaluated in terms of pressure and temperature alone. The magnitude of previous strain affects the elastic moduli, ductility, and strength of a rock subjected to later deformation, but the effect depends largely on the conditions of the later deformation--in particular, on the confining pressure and orientation of the principal stresses. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 30, 1968
Accession Number
AD0681939

Entities

People

  • Fred A. Donath

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Ductility
  • Materials
  • Orientation (Direction)
  • Strain Rate

Fields of Study

  • Geology

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.