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Endochronic Constitutive Modeling of Frozen Soil

by K. R. Gopal, Univ of Florida, Dep of Coastal, & Oceanographic Engineering, Gainesville, FL, USA,
D. V. Reddy, Univ of Florida, Dep of Coastal, & Oceanographic Engineering, Gainesville, FL, USA,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract:

The static behavior of a permafrost type foundation, for a typical artificial island in the Arctic, is determined using endochronic axisymmetric finite element analysis. Endochronic constants are obtained by curve fitting an experimentally determined stree-strain curve for frozen sand. The analytical results of endochronic theory are found to compare very well with those obtained by using the computer program, ADINA (Automatic Dynamic Incremental Nonlinear Analysis), with a curve description model for stress-strain behavior. Some of the recent criticisms of the earlier endochronic formulations and the modifications made to refine the analysis are discussed briefly. 15 refs.

Subject Headings: Frozen soils | Finite element method | Soil analysis | Offshore structures | Mathematical models | Curvature | Soil properties | Arctic

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