Investigating Compaction by Intergranular Pressure Solution Using the Discrete Element Method.

ABSTRACT: Intergranular pressure solution creep is an important deformation mechanism in the Earth's crust. The phenomenon has been frequently studied and several analytical models have been proposed that describe its constitutive behavior. These models require assumptions regarding the geometry of the aggregate and the grain size distribution in order to solve for the contact stresses and often neglect shear tractions. Furthermore, analytical models tend to overestimate experimental compaction rates at low porosities, an observation for which the underlying mechanisms remain to be elucidated. Here we present a conceptually simple, 3-D discrete element method (DEM) approach for simulating intergranular pressure solution creep that explicitly models individual grains, relaxing many of the assumptions

SUBMITTER: van den Ende MPA 

PROVIDER: S-EPMC5838561 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature