Finite Element Method Utilization of Disturbed State Concept Theory on Seepage or Anisotropy

Abstract:

Disturbed state concept theory (DSC) utilizes constitutive models to depict material responses. The response is gained by weight-averaging reference responses. DSC also can superpose disturbance factor on reference responses to reach actual response values. Suitable constitutive models give reference responses and DSC revises them to be acceptable outputs. Disturbance factor is independent to constitutive model. On DSC application on seepage problem, combination of DSC and Biot’s consolidation is forwarded by introducing disturbance factor into equilibrium function and extended cam-bridge model provides reference response. On DSC application on anisotropy, anisotropic disturbance factor is applied on to obtain stress anisotropy. Hierarchical single surface model is utilized to provide reference response for further anisotropic revision. Detailed formula derivation for DSC-seepage or for DSC-anisotropy is accomplished. On both applications, the key combination of DSC and other theory depends on the introduction of disturbance factor into equilibrium equation. Outcomes of DSC show readjustment of parameters of disturbance factor guaranties quantity of response descriptions. DSC takes into account of outside effects without changing inside. Existing models and existing methods can be used to describe newly responses.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 994-1000
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.994
• Online since: May 2012
• Authors: Jian Ye Zheng*, Zhi Fu Hu
• Keywords: Anisotropy, Biot’s Consolidation, Disturbed State Concept, Finite Element Method (FEM)

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