Compaction and shear settlement of granular materials (Q1208999)

Shearing of granular materials causes rearrangement of the granular structure which induces irreversible volume decrease and shear strain, in addition to reversible strain. A model is presented which describes the reversible strain by a hypoelastic law, and the irreversible compaction and shear by evolutionary laws. The latter are differential relations defining the progress of irreversible strain as an appropriate time- independent monotonic loading parameter increases, which incorporate dependence on the current state, and which require a direction for the irreversible shear strain increment.