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The Mean Stress as the Governing Parameter in the Implicit GPM Stress Integration of Modified Cam-Clay Model

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Vukićević, Mirjana
Rakić, Dragan
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Abstract
An implicit computational governing parameter method (GPM) for stress integration of the modified Cam-Clay model is presented in the paper. In the previous studies, the increment of the mean plastic strain d epsilon(p)(m) was adopted as the governing parameter for the modified Cam-Clay model. While in this paper, the effective mean stress sigma(m)' is used as the governing parameter, which is much more convenient than d epsilon(p)(m). Such algorithm is simple, reliable, efficient and robust. This approach makes it possible to calculate the true tangent constitutive matrix in a simple way.
Keywords:
Implicit stress integration / modified Cam-Clay model / soil
Source:
Information Technology in Geo-Engineering, 2010, 467-475

DOI: 10.3233/978-1-60750-617-1-467

WoS: 000347154900052

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URI
http://grafar.grf.bg.ac.rs/handle/123456789/290
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  • Катедра за грађевинску геотехнику
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