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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 54
Edited by: B.H.V. Topping
Paper X.1

Mixed Three Field Formulation of Two Phase Medium in Dynamic Elastoplastic Kinematic Hardening

A. Kaddouri and P.K. Woodward

Department of Civil and Offshore Engineering, Heriot-Watt University, Edinburgh, United Kingdom

Full Bibliographic Reference for this paper
A. Kaddouri, P.K. Woodward, "Mixed Three Field Formulation of Two Phase Medium in Dynamic Elastoplastic Kinematic Hardening", in B.H.V. Topping, (Editor), "Advances in Finite Element Procedures and Techniques", Civil-Comp Press, Edinburgh, UK, pp 269-273, 1998. doi:10.4203/ccp.54.10.1
This paper presents the results of ongoing numerical research on the cyclic and dynamic behaviour of saturated sands based on the two phase mixture theory of Biot and using the mixed three field formulation u U p, where u, U and p are the solid displacement, the fluid displacement and the pore fluid pressure respectively. An advanced mixed kinematic hardening model is used to simulate most of the observed laboratory and field features of the material. The performance of the formulation is checked by comparison of triaxial numerical and experimental results to show the usefulness and applicability of using an advanced constitutive model in this type of analysis. This constitutes the first step achieved in order to use the developed program in the future for earthquake induced liquefaction simulation.

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