Accession Number : ADA329759

Title :   Axisymmetric Compression of a Mohr-Coulomb Medium with Arbitrary Dilatancy, Including Free-Field Yielding

Descriptive Note : Technical rept. 10 Jun 91-15 Dec 96

Corporate Author : BDM INTERNATIONAL INC MCLEAN VA

Personal Author(s) : Kendall, David M. ; Wintergerst, Gary L. ; Burgess, Danny N.

PDF Url : ADA329759

Report Date : 01 OCT 1997

Pagination or Media Count : 132

Abstract : A dosed-form analytical solution is developed for hole closure and stresses and strains in a Mohr-Coulomb medium surrounding a circular hole and loaded axisymmetrically in plane strain. This solution extends multiple-plastic-zone solutions developed by others to allow arbitrary dilatancy. It also extends the solution to include cases where particular combinations of friction angle, elastic properties, and free-field pressure cause the free field to yield before significant deformation of the opening occurs. Step-by-step procedures for applying the solution and numerical examples are presented.

Descriptors :   *STRESS STRAIN RELATIONS, *DEFORMATION, *TUNNELS, PRESSURE GRADIENTS, STRESS ANALYSIS, SURVIVABILITY, STRUCTURAL ANALYSIS, ELASTIC PROPERTIES, STRAIN HARDENING, STRUCTURAL RESPONSE, HOLES(OPENINGS), FRICTION, AXIAL LOADS, COMPRESSIVE PROPERTIES, UNDERGROUND STRUCTURES, HYDROSTATIC PRESSURE.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE