Thermodynamics of Frictional Materials. Report 1. Constitutive Theory of Soils with Dilatant Capability

摘要

In this work, thermodynamic and physical principles are applied in conjunction with the concepts of endochronic plasticity to develop a theory of constitutive behavior of soils with dilatant capability. Three separate constitutive models are derived within the framework of the proposed theory, all capable of accounting for the salient features of soil behavior either in a contractive or a dilatant mode. One specific theoretical model is singled out as the most appropriate on the basis of its analytical simplicity and the plausibility of its thermodynamic and physical foundations. A simple example is worked out for the purpose of illustration. Keywords: Anisotropy; Constitutive equations; Critical state theory; Endochronic theory; Plasticity; Sand. (JES)