GENERALIZED NONASSOCIATIVE MULTISURFACE APPROACH FOR GRANULAR MATERIALS

This paper presents a generalized transitional yielding approach, with any desired number of limit surfaces. The limit surfaces represent various degrees of the hierarchical material memory due to stress history. A new approach for describing the nonassociative behavior of granular materials without using different functions for the yield surface and the plastic potential surface is also formulated. The approach offers a unique and smooth definition for loading, unloading, and reloading, and it does not need to define a conjugate point. It is shown that the two surface model and the INS (infinite yield surface) model can be regarded as 2 extreme cases of the proposed approach.

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 51-66
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00603293
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 31 1991 12:00AM