Evaluating different yield surface assumptions in representing constant axial load tests which follow anisotropic consolidation

Panagiotis Sitarenios, Francesca Casini

Research output: Contribution to conferencePaper

Abstract

The present study utilizes a series of anisotropic consolidation tests followed by a decrease of the mean stress under constant axial load to define the yield locus of anisotropically consolidated soil samples and to evaluate the ability of different yield surface shapes in accommodating the observed behaviour. Nine different axial load tests are used, including three different water contents and three different consolidation stress obliquities. For each test, the “end of compression” and the “failure initiation” stress states are assumed to define the yield locus. Two isotropic and two anisotropic ellipsoids are used to describe the experimentally determined yield points. It proves that a distorted ellipsoid is superior in capturing the behaviour, provided that its aspect ratio is handled as an independent variable.
Original languageEnglish
Number of pages6
Publication statusPublished - Aug 2018
Event7th International Conference on Unsaturated Soils - Hong Kong, Hong Kong
Duration: 2 Aug 20185 Aug 2018
Conference number: 7

Conference

Conference7th International Conference on Unsaturated Soils
Abbreviated titleUNSAT2018
CountryHong Kong
CityHong Kong
Period2/08/185/08/18

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    Sitarenios, P., & Casini, F. (2018). Evaluating different yield surface assumptions in representing constant axial load tests which follow anisotropic consolidation. Paper presented at 7th International Conference on Unsaturated Soils, Hong Kong, Hong Kong.