Directional plasticity of clay showing instability

Fortuna, Sonia (2010). Directional plasticity of clay showing instability. In: 9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics, Sydney, Australia, (12080-1-12080-9). 19-23 July 2010. doi:10.1088/1757-899X/10/1/012080

Author Fortuna, Sonia
Title of paper Directional plasticity of clay showing instability
Conference name 9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics
Conference location Sydney, Australia
Conference dates 19-23 July 2010
Journal name IOP Conference Series: Materials Science and Engineering   Check publisher's open access policy
Place of Publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Publication Year 2010
Sub-type Fully published paper
DOI 10.1088/1757-899X/10/1/012080
Open Access Status DOI
ISSN 1757-899X
Volume 10
Issue 1
Start page 12080-1
End page 12080-9
Total pages 9
Collection year 2011
Language eng
Abstract/Summary A graphical approach is used to sketch the field of small plastic strains (e < 0.1 %) of Pisa clay along different axi-symmetric stress paths associated to a partial confining stress reduction. Within the classic framework of elasto-plasticity, volumetric and deviatoric plastic strains contours are determined from data obtained from triaxial tests, assuming a cross-anisotropic hypo-elastic formulation calibrated on a wide set of tests and with non linear evolution of the elastic moduli calibrated along a quasi-1D swelling stress path. The evolutions of the plastic strains and of the plastic strain vectors are shown along the stress path directly explored with tests and along virtual paths interpolated from the actual data along intermediate directions at various strain levels.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article Number: 012080

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2011 Collection
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Created: Tue, 16 Nov 2010, 10:43:51 EST by Dr Sonia Fortuna on behalf of School of Civil Engineering