Stress Deformation analysis software

Stress History

In Situ stresses can be established using gravity activation, field stresses, or the K0 procedure, which consider the volumetric water content function to determine effective stresses in the unsaturated zone. Pore-water pressures can be defined using a variety of sources.

Coupled Consolidation

The coupled stress and pore-water pressure formulation can handle complex analyses with saturated or unsaturated soils. This is useful for construction sequences involving fill placement, excavation, and soil-structure interaction.


Unloading or loading activities can be simply and accurately modelled, including submerged fill placement, dam and tailings embankment construction, deep excavations, and open pit mine construction. Pore-water pressure changes can be incorporated by defining the initial and final water conditions.

Stress Redistribution

The stress redistribution algorithm is capable of doing stress correction for any material model with a failure criteria. Strength Reduction Stability is also available as an alternative to the limit equilibrium stability method.


Stress and deformation analysis
SIGMA/W is a powerful finite element software product for modelling stress and deformation in soil, rock, and structures. SIGMA/W analyses may range from simple linear elastic simulations to soil-structure interaction problems with nonlinear material models.
SIGMA/W enables you to analyze a broad class of problems in the civil and mining sectors due to its extensive material model library and rigorous formulation. With SIGMA/W, you can analyze complex consolidation problems, stability of soil and rock slopes, soil-structure interaction problems, and much more


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