IN-PLANE DEFORMATION OF NON-COAXIAL PLASTIC SOIL

The theory of non-coaxial in-plane plastic deformation of soils that obey the Coulomb yield criterion is presented. The constitutive equations are derived by use of the geometry of the Mohr circle and the theory of characteristic lines. It is found that, for solving a boundary value problem, the non-coaxial angle must be given such values that enable us to accommodate the presupposed type of flow in the given domain satisfying the given boundary conditions. The non-coaxial angle is contained in the constitutive equations as a parameter. Therefore, the plastic material obeying the Coulomb yield criterion is a singular material whose constitutive equations are not constant with material but are variable with flow conditons. /Author/

• Corporate Authors:

  U.S. Army Cold Regions Research and Engineering Laboratory

  72 Lyme Road
  Hanover, NH  United States  03755-1290
• Authors:
  • Takagi, S
• Publication Date: 1978-4

Media Info

• Features: Figures; References;
• Pagination: 28 p.

Subject/Index Terms

• TRT Terms: Boundary value problems; Deformation; Equations; Mohr circles; Plastic soils; Soils
• Uncontrolled Terms: Soil deformation
• Old TRIS Terms: Coulomb failure criterion
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00178327
• Record Type: Publication
• Report/Paper Numbers: CRREL Report 78-7
• Files: TRIS
• Created Date: Jul 29 1978 12:00AM