Yield surfaces for frictional sphere assemblages

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:175256

Goddard, J D; Didwania, A K ^[1]

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1. Univ. of California, San Diego, La Jolla, CA (United States)

By means of a recently developed computer algorithm for simulation of the quasi-static I mechanics of sphere assemblages, we have performed extensive computations of the dilatancy and plasticity of such systems for various proportional loading histories. We have investigated the effect of initial packing density or void ratio, size polydispersity, friction coefficient and plastic strain on the evolution of the yield surface. We find that all the yield surfaces tend to an asymptotic form which is well represented by the Lade-Duncan yield surface, developed originally for sand, suggesting that the Lade-Duncan form may reflect some universality in the behavior of assemblages of rigid frictional particles.

• OSTI ID: 175256
• Report Number(s): CONF-950686-; TRN: 95:006111-0209
• Resource Relation: Conference: Joint applied mechanics and materials summer meeting, Los Angeles, CA (United States), 28-30 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of AMD - MD `95: Summer conference; PB: 520 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
GRANULAR MATERIALS
SURFACE PROPERTIES
DENSITY
DILATANCY
FRICTION
PLASTICITY
SIMULATION