open_petro_elastic.material.sandstone

Sandstone is a rock composed of a granular material (sand) made up of irregular shaped grains (~1mm diameter) made up of a mineral material. The grains are held together by a cement material.

Porosity is the hollow space in a material as a ratio of the total space.

Modules

constant_cement(sand, cement, porosity, ...)	The constant cement model (Aveset et.
contact_cement(cement, mineral, ...[, ...])	Dvorkin Nur (1996) contact cement model of cemented granular material.
friable_sand(mineral, porosity, ...[, ...])	Models sandstone as a hashin-shtrikman-walpole lower bound of hertz_mindlin granular material at critical porosity and solid mineral.
hertz_mindlin(mineral, porosity, pressure[, ...])	Adjusts the moduli of a given granular material to a confining pressure according to Hertz-Mindlin model for pressure-induced moduli increase at critical porosity.
murphy_coordination_number(porosity)	Estimation of coordination number for sandstone from porosity by Murphy, W.
patchy_cement(sand, cement, porosity, ...[, ...])	A hybrid sandstone model based on the patchy cement model of Avseth et.