STUDIES IN ROCK FRACTURE.

Abstract

The study is to evaluate the influence of residual elastic strain on the orientations of tensile and shear fractures in rock. As a first step the three-dimensional state of residual elastic strain was measured by X-ray diffractometry in each of three quartzose sandstones. A prediction was then made concerning the orientations of fractures that would be induced in each rock by loading normal to bedding. The prediction was based upon a knowledge of the prestrain, the applied loads, the maximum tensile stress and Coulomb-Mohr criteria. Each prediction was then tested by experimentally fracturing the rocks. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1969
Accession Number
AD0689578

Entities

People

  • John Handin

Organizations

  • Texas A&M University

Tags

DTIC Thesaurus Topics

  • Orientation (Direction)
  • Physical Properties
  • Residuals
  • Stresses
  • Tensile Stress
  • Three Dimensional
  • X Rays

Readers

  • Geotechnical Engineering.
  • Materials Science (Mechanical Engineering).