Constitutive Modelling

摘要

Numerical modelling of any problem requires noncontroversial statements of equilibrium and of kinematics or compatibility (the definition of strain); the constitutive response which links stress change and strain change is much more uncertain.Models that are available in most numerical analysis programs that are intended for application to geotechnical problems include elastic-perfectly plastic Mohr-Coulomb, and Cam clay. We will present these models together with modest developments to improve the range of their applicability. Engineers are more likely to make use of models which can be clearly seen as incrementally different from models with which they have some familiarity than to make use of models which adopt a completely different language.