MODELLING OF SOIL-STRUCTURE INTERFACE BEHAVIOUR: A COMPARISON BETWEEN ELASTOPLASTIC AND RATE TYPE LAWS

Constitutive laws for interface behaviour are needed for the finite element analysis of problems involving soil-structure interaction, such as for piles, anchors, sheet-piling, foundations subjected to inclined loadings. The aim of this paper is the comparison of two such laws belonging to different theoretical frameworks. In order to do that the experimental results obtained by means of a specially conceived direct shear box will be shown first and the essential features of the observed behaviour will be discussed. An elastoplastic strain hardening model and an incremental law of the rate type will be then presented. It will be shown that both may reproduce reasonably well the observed results. The former law is simpler and is quite acceptable for small displacements, while the latter seems to be more appropriate when displacements are larger. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0266352X
• Corporate Authors:

  Elsevier Science Publishers

  Crown House, Linton Road
  Barking, Essex IG11 8JU,   England 
• Authors:
  • Boulton, M
  • Nova, R
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 21-46
• Serial:
  • COMPUTERS AND GEOTECHNICS
  • Volume: 9
  • Issue Number: 1/2
  • Publisher: Elsevier
  • ISSN: 0266-352X

Subject/Index Terms

• TRT Terms: Elasticity (Mechanics); Evaluation and assessment; Finite element method; Foundations; Interfaces; Mathematical models; Plasticity; Soils; Support piles
• Uncontrolled Terms: Shear box
• Subject Areas: Geotechnology; Planning and Forecasting;

Filing Info

• Accession Number: 00606881
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM