This paper describes the methods evolved for input of non-linear stress-strain relationships in finite element analysis of multilayer systems. Functional relationships for behaviour of pavement materials subjected to transient stresses are formulated. Parameters in these relationships are interpreted from the standpoint of repeated load triaxial compression tests. The displacement field for a typical pavement configuration is determined on the basis of the non-linear materials' responses. The computer program is based on direct stiffness matrix, axially symetric stress distribution and continuity of strains across layer interfaces. In addition to handling stress dependent moduli, there is provision for dealing with non-tensile layers and axle load repetitions. Separation of the displacement field into recoverable land permanent components is achieved in the program. The digital computer program, DYNASTCO, was developed at The Computer Laboratory, C.S.R., University of Dublin. /Author/

  • Supplemental Notes:
    • Presented at the XIVth World Road Congress, Prague, Czechoslovakia, 1971.
  • Corporate Authors:

    Permanent International Assoc of Road Congresses

    43 Avenue du President Wilson
    Paris 16eme,   France 
  • Authors:
    • GLYNN, T E
  • Publication Date: 1971

Media Info

  • Features: Figures; References;
  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00265693
  • Record Type: Publication
  • Report/Paper Numbers: Book II-12
  • Files: TRIS
  • Created Date: Feb 27 1975 12:00AM