Stress-volume change relations for granular material such as clay in the elastic and the elastic-plastic states are derived from experimentally confirmed characteristics of consolidation and dilatancy processes of clay. Based on these stress-volume change relations, initial and current yield surfaces are calculated, and with the assistance of the associated flow rule in plasticity the incremental stress-strain relations are given. Reconstruction of the theory of constitutive equations for clay is made with some restrictions and with consideration of the thermal effects. Physical interpretation of the theoretical derivatives gives some suggestions regarding the failure mechanism of frictional granular materials. /AUTHOR/

  • Corporate Authors:

    Society of Materials Science

    1 Yoshida Izumidono-cho, Sakyo-Ku
    Kyoto 600,   Japan 
  • Authors:
    • OHTA, H
    • Hata, S
  • Publication Date: 1972

Media Info

  • Features: Figures; References;
  • Pagination: p. 65-74

Subject/Index Terms

Filing Info

  • Accession Number: 00260109
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Proceeding
  • Files: ITRD, TRIS
  • Created Date: Sep 5 1974 12:00AM