Summary
The formation of strain localization influences the stability and stiffness of the soil mass or geosystem. The thickness of shear bands provides insight into overall strength and stiffness inside the granular body, and the shear band angle gives information about the failure surface in a given soil or soil mass. Thus, it is important to be able to predict when a shear band forms and how this zone of intense deformation is located and oriented within the granular medium. A rational finite element analysis for capturing the formation and development of shear bands has been formulated by using a micropolar continuum in finite element analysis. Hardening parameters including nonsymmetric stress and length scale are implemented for a realistic stress–strain analysis. Implementation and simulations of the model will be discussed in the Part II of this research. The micro–macro structure relation for finite element analysis based on this formulation paper will be simulated in the corresponding paper.
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Arslan, H., Sture, S. Finite element analysis of localization and micro–macro structure relation in granular materials. Part I: Formulation. Acta Mech 197, 135–152 (2008). https://doi.org/10.1007/s00707-007-0512-2
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DOI: https://doi.org/10.1007/s00707-007-0512-2