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Comparison of two anisotropic creep models at element level

N. Sivasithamparam ; Minna Karstunen (Institutionen för bygg- och miljöteknik, Geologi och geoteknik) ; R.B.J. Brinkgreve ; P.G. Bonnier
Proc. International Conference on Installation Effects in Geotechnical Engineering, Rotterdam, NL, 23-27 March 2013 p. 72-78. (2013)
[Konferensbidrag, refereegranskat]

This paper presents a comparison of two anisotropic c reep models, ACM and Creep-SCLAY1, which differ in their formulation of creep strain rate. Creep is formulated in ACM using the concept of contours of constant volumetric creep strain rate, whereas the newly developed Creep-SCLAY1 model uses the concept of a constant rate of visco-plastic multiplier. The two mode ls are identical in the way the initial anisotropy and the evolution of anisotropy are simulated. A key assumption of both models is that there is no purely elastic domain. The models are compared at element level. The numeri cal simulations show that the Creep-SCLAY1 model is able to give a better representation of natural clay behaviour at element level.

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Denna post skapades 2013-02-06. Senast ändrad 2014-09-02.
CPL Pubid: 173111


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