Evaluation of Deformability Properties of Rocks with Overlapping Inclusions by Different Averaging Methods

نویسنده

  • N. Tokashiki
چکیده

Mechanical properties of rocks with inclusions, which may correspond to porous rocks under limiting conditions, are influenced by their shape, distributions, and intrinsic properties. Many different averaging methods such as homogenization, micro-mechanics and microstructure methods are proposed to estimate average thermo-hydro-mechanical properties of rocks. In this paper, the authors evaluate the deformability properties of rocks with overlapping or non-overlapping inclusions arranged in different patterns using a modified microstructure technique and the results are compared with those by finite element analyses and the homogenization technique. Furthermore, the elastic properties of rocks with elongated overlapping pores are evaluated by using the modified microstructure technique, finite element method and the homogenization technique. And they are compared with experimental data. It is found that the modified microstructure model can explain the scattering of experimental elastic properties.

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تاریخ انتشار 2008