Publication Detail

Formulation of MIT-E3 Constitutive Model for Overconsolidated Clays

Andrew J Whittle, Michael J. Kavvadas
1994
26 pp.
MITSG 94-31J
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Most natural clays involve some degree of overconsolidation due to processes of mechanical unloading such as erosion, excavations, and changes in ground-water pressures. Because of the complexities of various soils and conditions, models must be tailor-made for particular problems. This paper presents a generalized effective stress model for describing consolidated clays that obey normalized behavior and are rate-independent. The model is based on the theory of incrementally linearized elastoplasticity and consists of three distinct components: an elastoplastic model for normally consolidated clays; a perfectly hysteretic formulation; and bounding surface plasticity.

type: Technical reports

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