Evaluation of different strategies for the integration of hypoplastic constitutive equations: Application to the CLoE model

Abstract

The paper discusses the performance of two different strategies for the integration of hypoplastic constitutive equations, recently proposed to model the incrementally non-linear behaviour of granular soils. An extensive program of numerical tests on some particular strain paths has been conducted in order to evaluate the different algorithms in terms of both accuracy and efficiency. The paper focuses on the effects of such variables as strain increment size and assumed error tolerance, as well as strain increment direction and initial stress state. Copyright © 2000 John Wiley & Sons, Ltd.