Prediction of mechanical response of geomaterials using an advanced elasto-plastic constitutive model

Singh, S and Kandasami, R K and Murthy, T G (2017) Prediction of mechanical response of geomaterials using an advanced elasto-plastic constitutive model. In: 11th International Symposium on Plasticity and Impact Mechanics (IMPLAST), DEC 11-14, 2016, Indian Inst Technol, New Delhi, INDIA, pp. 793-799.

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Abstract

Phenomenological models using plasticity theory are constantly evolving with the increased computational advancements. This evolution is inevitable especially for modeling heterogeneous, anisotropic materials systems like granular or cemented granular materials as newer aspects of their physics come to light. In this study, we present a brief compendium of the evolution of constitutive models for granular materials. The essence of this research study lies in selecting an appropriate advanced third generation elasto-plastic constitutive model and checking its efficacy in predicting the various aspects of granular and cemented granular response. The Lade's isotropic single hardening elasto-plastic constitutive model is selected for this study. The model description is laid out for granular system and the modifications that are made to incorporate the effect of cohesion are also clearly established. Further, the material/model parameters are obtained from appropriate experimental procedures and a comparison between the single point integrated model predictions and experimental results are made. (c) 2016 The Authors. Published by Elsevier Ltd.

Item Type:	Conference Proceedings
Series.:	Procedia Engineering
Publisher:	ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Additional Information:	11th International Symposium on Plasticity and Impact Mechanics (IMPLAST), Indian Inst Technol, New Delhi, INDIA, DEC 11-14, 2016
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	10 Jun 2017 04:40
Last Modified:	22 Oct 2018 11:58
URI:	http://eprints.iisc.ac.in/id/eprint/57191

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