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/


  • English

Media Info

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

Subject/Index Terms

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