Constitutive model for geological and other porous materials under dynamic loading

Conference · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.1051/jp4:19913118· OSTI ID:5512285

Dey, T N

An effective stress model is described for use in numerical calculations on porous materials which are partially or fully saturated with water. The flow rule chosen for the shear failure portion of the model is examined and shown to have significant influence on wave propagation results. A flow rule which produces dilatancy results in less attenuation than a rule producing shear-enhanced void collapse. The dilatancy producing rule is less prone to producing liquefaction and results in significantly higher stress levels behind the wave front. 8 refs., 6 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5512285
• Report Number(s): LA-UR-91-1606; CONF-911069-4; ON: DE91013230
• Resource Relation: Journal Volume: 01; Journal Issue: C3; Conference: 3. international conference on mechanical and physical behavior of materials under dynamic loading, Strasbourg (France), 14-18 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
GEOLOGIC STRUCTURES
DYNAMIC LOADS
GEOPHYSICS
MATHEMATICAL MODELS
ATTENUATION
DILATANCY
FLOW RATE
FLOW STRESS
FLUID FLOW
GEOLOGIC MODELS
GEOLOGY
LIMESTONE
POROUS MATERIALS
ROCKS
SOILS
WATER
WAVE PROPAGATION
CARBONATE ROCKS
HYDROGEN COMPOUNDS
MATERIALS
MECHANICAL PROPERTIES
OXYGEN COMPOUNDS
SEDIMENTARY ROCKS
STRESSES
540210* - Environment
Terrestrial- Basic Studies- (1990-)
540310 - Environment
Aquatic- Basic Studies- (1990-)
580000 - Geosciences