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- W4221167045 abstract "Unsaturated periporomechanics is a strong nonlocal poromechanics based on peridynamic state and effective force concept. In the previous periporomechnics the total Lagrangian formulation is adopted for the solid skeleton of porous media. In this article as a new contribution we formulate and implement an updated Lagrangian unsaturated periporomechanics framework for modeling extreme large deformation in unsaturated soils under drained condition, e.g., soil column collapse. In this new framework the so-called bond-associated sub-horizon concept is utilized to enhance the stability and accuracy at extreme large deformation of solid skeleton. The stabilized nonlocal velocity gradient in the deformed configuration is used to update the effective force state from a critical state based visco-plastic model for unsaturated soils. The updated Lagrangian periporomechanics is implemented numerically through an explicit Newmark scheme for high-performance computing. Numerical examples are presented to demonstrate the efficacy of the updated Lagrangian periporomechanics and its robustness in modeling unsaturated soil column collapse under drained condition." @default.
- W4221167045 created "2022-04-03" @default.
- W4221167045 creator A5002591933 @default.
- W4221167045 creator A5082437433 @default.
- W4221167045 date "2022-03-10" @default.
- W4221167045 modified "2023-10-16" @default.
- W4221167045 title "Updated Lagrangian unsaturated periporomechanics for extreme large deformation in unsaturated porous media" @default.
- W4221167045 doi "https://doi.org/10.48550/arxiv.2203.05562" @default.
- W4221167045 hasPublicationYear "2022" @default.
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