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Effect of the Flow Rule on the Bearing Capacity of Strip Foundations on Sand by the Upper-Bound Limit Analysis and Slip Lines

Veiskarami, Mehdi and Kumar, Jyant and Valikhah, Fatemeh (2014) Effect of the Flow Rule on the Bearing Capacity of Strip Foundations on Sand by the Upper-Bound Limit Analysis and Slip Lines. In: INTERNATIONAL JOURNAL OF GEOMECHANICS, 14 (3).

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Official URL: http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.00003...

Abstract

The influence of the flow rule on the bearing capacity of strip foundations placed on sand was investigated using a new kinematic approach of upper-bound limit analysis. The method of stress characteristics was first used to find the mechanism of the failure and to compute the stress field by using the Mohr-Coulomb yield criterion. Once the failure mechanism had been established, the kinematics of the plastic deformation was established, based on the requirements of the upper-bound limit theorem. Both associated and nonassociated plastic flows were considered, and the bearing capacity was obtained by equating the rate of external plastic work to the rate of the internal energy dissipation for both smooth and rough base foundations. The results obtained from the analysis were compared with those available from the literature. (C) 2014 American Society of Civil Engineers.

Item Type: Journal Article
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Additional Information: Copyright for this article belongs to the ASCE-AMER SOC CIVIL ENGINEERS, USA.
Keywords: Flow rule; Foundation; Limit analysis; Numerical model; Plasticity; Slip lines
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 22 Jul 2014 11:39
Last Modified: 22 Jul 2014 11:39
URI: http://eprints.iisc.ernet.in/id/eprint/49419

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