Graphical representation of constitutive equations

Many theories, based on different mathematical approaches, emerged from the research on soil constitutive modelling. Even though the models may be developed to be easy to use, with few parameters and well-defined calibration procedures, their mathematical formulations are often complex, and only a few scientists, working on their development, understand them in detail. In this note we propose a method for graphical (as opposed to algebraic) representation of the most important soil properties captured by the models, which eases judgement of their response capabilities and reveals their physical basis without the need to understand the details of their mathematical formulations....