Accession Number : AD0629875

Title :   THREE-DIMENSIONAL YIELD CRITERION OF C-PHI MATERIAL.

Descriptive Note : Research rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Takagi,Shunsuke

Report Date : OCT 1965

Pagination or Media Count : 24

Abstract : A general three-dimensional yield criterion of an ideal soil, called c-phi material, is determined that can coincide with the Shield yield criterion and the Drucker-Prager yield criterion by giving appropriate values to the parameters contained. When expressed on an octahedral plane in the principal-stress space, the yield criterion is represented by a hexagon of curved sides formed of conic sections. The geometric relationships satisfied by a family of curved hexagons are investigated. (Author)

Descriptors :   (*SOIL MECHANICS, MATHEMATICAL ANALYSIS), SOILS, DEFORMATION, PLASTIC PROPERTIES, GEOMETRY

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE