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The deformable multilaminate for predicting the Elasto-Plastic behavior of rocks
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  • Journal title : Computers and Concrete
  • Volume 18, Issue 2,  2016, pp.201-214
  • Publisher : Techno-Press
  • DOI : 10.12989/cac.2016.18.2.201
 Title & Authors
The deformable multilaminate for predicting the Elasto-Plastic behavior of rocks
Haeri, Hadi; Sarfarazi, V.;
In this paper, a multilaminate based model have been developed and presented to predict the strain hardening behavior of rock. In this multilaminate model, the stress-strain behavior of a material is obtained by integrating the mechanical response of an infinite number of predefined oriented planes passing through a material point. Essential features such as the variable deformations hypothesis and multilaminate model are discussed. The methodology to be discussed here is modeling of strains on the 13 laminates passing through a point in each loading step. Upon the presented methodology, more attention has been given to hardening in non-linear behaviour of rock in going from the peak to residual strengths. The predictions of the derived stress-strain model are compared to experimental results for marble, sandstone and dense Cambria sand. The comparisons demonstrate the ability of this model to reproduce accurately the mechanical behavior of rocks.
multilaminate model;variable deformations hypothesis;elasto-plastic behavior;
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