Strain Softening

OpenSees Strain Softening Model

A three-dimensional (3D) incremental plasticity constitutive model is developed for simulating the strain softening behavior of soil materials. The constitutive model extends an existing multi-yield surface (MYS) plasticity formulation with a new strain softening logic.

MSBridge mesh

*Qiu, Z. and Elgamal, A., 2020. Three-Dimensional Modeling of Strain-Softening Soil Response for Seismic-Loading Applications. Journal of Geotechnical and Geoenvironmental Engineering, 146(7), p.04020053.

Site response

MSBridge mesh MSBridge mesh

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Cyclic Softening Model
In addition to post-peak stress softening, cyclic degradation exhibited by soils due to mechanisms such as pore pressure generation for instance can be incorporated into the developed strain softening plasticity constitutive model.
MSBridge mesh