Effect of the Non-Associativity of Plasticity Model on the Cyclic Behavior of Geomaterials

Fusao Oka; Sayuri Kimoto

doi:10.4028/www.scientific.net/KEM.725.322

Paper Titles

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Study of Micro Deformation of Austenitic-Ferrite Duplex Stainless Steel by Nanoindentation Method
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Effect of the Non-Associativity of Plasticity Model on the Cyclic Behavior of Geomaterials
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Thermo-Elasto-Plastic Analysis of Pearlitic Transformation Plasticity under Combined Bending-Tensile Loading
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Fatigue of Extruded 2017A Aluminum Alloy Subjected to Non-Proportional Loading Paths
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Elastic and Plastic Analysis of O-Ring Seal for Reactor Pressure Vessel
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 725Effect of the Non-Associativity of Plasticity...

Effect of the Non-Associativity of Plasticity Model on the Cyclic Behavior of Geomaterials

Abstract:

The present paper proposed a cyclic plasticity model with a non-associativity parameter, i.e., the model includes non-associative flow rule and associative one. In the present model, the non-associative parameter controls the non-associativity. The model is derived based on the non-linear kinematical hardening rule with two hardening parameters for both the volumetric and deviatoric strains. From the simulation by the present model, we have found the strong non-associativity leads to the large decrease in the mean effective stress, i.e. almost zero mean effective stress during the cyclic deformations under undrained conditions while the model with associated flow rule is not.

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Advances in Engineering Plasticity and its Application XIII

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Periodical:

Key Engineering Materials (Volume 725)

Pages:

322-327

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.725.322

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Online since:

December 2016

Authors:

Fusao Oka*, Sayuri Kimoto

Keywords:

Cyclic Plasticity, Geomaterials, Liquefaction, Non-Associated Flow Rule

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