The load carried by the solid skeleton or contacts after allowing for pore fluid pressure. In compression-positive form an elementary law is ; the contact approximation often takes . Fixed-total-stress pressure changes translate a Mohr circle without changing its radius.
Articles by others on the same topic
Effective stress is a key concept in soil mechanics and geotechnical engineering that describes the stress that contributes to the soil's strength and stability. It is defined as the difference between the total stress and the pore water pressure within the soil. The effective stress principle was formulated by Karl Terzaghi in the early 20th century and is fundamental in understanding how saturated soils behave under loading conditions.