CONSTRAINED AND SHEAR MODULI FOR FINITE ELEMENTS

The stress-strain matrix used in finite element analyses has been reformulated in terms of constrained and shear moduli. The new formulation partially uncouples shear and compression and is relatively independent of the relationships of elasticity. Simple hyperbolic functions have been proposed to define equivalent elastic compression and shear moduli for modeling nonlinear soil behavior. Straightforward procedures are provided to determine the parameters for the hyperbolic equations from conventional one-dimensional compression and simple shear tests. In some cases, compression and shear wave propagation velocities measured in situ may also be used. For compatibility with many existing nonlinear finite element programs, either secant or tangent moduli may be developed. Several examples are given for the determination of the hyperbolic parameters from actual soil test data. /ASCE/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Drnevich, V P
• Publication Date: 1975-2

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 459-473
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 101
  • Issue Number: GT5
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Compression tests; Constraints; Deformation curve; Equations; Finite element method; Hyperbolic functions; Mechanical elasticity; Modulus; Nonlinear systems; Properties of materials; S waves; Secant; Shear modulus; Shear stress; Shear tests; Soils; Strain (Mechanics)
• Old TRIS Terms: Constraining; Secant modulus; Soil characteristics; Tangential strain; Tangential stress; Wave mechanics
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00097373
• Record Type: Publication
• Report/Paper Numbers: ASCE #11319 Proceeding
• Files: TRIS
• Created Date: Aug 13 1975 12:00AM