INDUCED ANISOTROPY IN A SAND

Controlled changes of principal stress directions have been applied to dense sand samples undergoing plane strain. The new apparatus and development problems are described before results are presented for a series of tests in which A single sudden rotation of principal stress directions was applied to each sample of dense sand. The magnitudes of these single rotations varied from 0 degrees to 90 degrees, individual rotations differing by 5 degrees or 10 degrees. The influence of inherent anisotropy was eliminated by depositing the samples in the direction of the subsequently applied intermediate principal stress (delta epsilon 2 = 0). The results demonstrate that induced anisotropy can have A large effect on magnitudes of strain increments and cause A small and quickly reducing deviation of the principal axes of stress and strain increment. There is a strong indication that for plastic strain no-extension directions define axes of induced anisotropy. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Arthur, JRF
  • Chua, K S
  • Dunstan, T
• Publication Date: 1977-3

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 13-30
• Serial:
  • GEOTECHNIQUE
  • Volume: 27
  • Issue Number: 1
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Anisotropy (Physics); Deformation; Equipment; Isotropy; Loads; Sand; Strain (Mechanics); Stresses
• Uncontrolled Terms: Plane strain
• Old TRIS Terms: Anisotropy
• ITRD Terms: 5595: Deformation; 3674: Equipment; 5917: Isotropic; 5567: Load; 4105: Sand; 5575: Stress (in material)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00156477
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Oct 13 1977 12:00AM