In the Prevost effective stress soil model, soil is viewed as a multi-phase medium consisting of an inelastic porous skeleton and viscous fluids. The model is a general analytical that describes the nonlinear, anisotropic, elasto-plastic, stress and strain dependent, and strength properties of the skeleton when subjected to a three-dimensional loading. This report presents a summary of the Prevost model. A summary of the model formulation is given with its implementation into the DYNAFLOW finite element code. Test data are compared with code prediction. Several boundary value problems are solved as a demonstration of capability.

Proceedings of the conference, Boulder, CO, June 10-12, 1991. Geotechnical Special Publication No. 27.

Within the last fifty years the performance requirements for technical objects and systems were supplemented with: customer expectations (quality), abilities to prevent the loss of the object properties in operation time (reliability and maintainability), protection against the effects of undesirable events (safety and security) and the ability to restore performance (resilience). The need to adapt the operation of complex systems in such an uncertain and volatile environment has caused the necessity to formulate new and well established achievements associated with modeling, testing and evaluation of these properties. The concept of a complex system applies not only to the technical ones but also the infrastructure of major importance for social life such as transportation and logistics systems, buildings, power systems, water distribution systems or health services. Safety and Reliability: Methodology and Applications contains the proceedings of the 24th European Safety and Reliability Conference (ESREL 2014, Wroclaw, Poland, 14-18 September 2014), and discusses theories and methods and their applications in the areas of risk, safety and reliability. The abstracts book (408 pages) + full paper CD-ROM (2496 pages) will be of interest to researchers and practitioners, academics and engineers working in academic, industrial and governmental sectors.