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A platform for research: civil engineering, architecture and urbanism
Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
We present a computational nonlocal poromechanics framework for modeling unguided cracking in unsaturated soils. In this mathematical model, the initiation and propagation of cracks in unsaturated soils is autonomous and modeled through a novel fracture criterion considering solid-fluid coupling effects. The nonlocal coupled poromechanics model is implemented numerically using an implicit fractional step algorithm in which the coupled problem is transformed into two sub-problems (i.e., mechanical and fluid flow). First, the mechanical sub-problem is solved using Newton’s method with an explicit predictor of water pressure. Second, the sub-problem of fluid flow is solved using Newton’s method in the updated solid configuration. Two numerical examples are presented to demonstrate the robustness of this proposed computational nonlocal poromechanics framework for modeling arbitrary cracking in unsaturated soils.
Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
We present a computational nonlocal poromechanics framework for modeling unguided cracking in unsaturated soils. In this mathematical model, the initiation and propagation of cracks in unsaturated soils is autonomous and modeled through a novel fracture criterion considering solid-fluid coupling effects. The nonlocal coupled poromechanics model is implemented numerically using an implicit fractional step algorithm in which the coupled problem is transformed into two sub-problems (i.e., mechanical and fluid flow). First, the mechanical sub-problem is solved using Newton’s method with an explicit predictor of water pressure. Second, the sub-problem of fluid flow is solved using Newton’s method in the updated solid configuration. Two numerical examples are presented to demonstrate the robustness of this proposed computational nonlocal poromechanics framework for modeling arbitrary cracking in unsaturated soils.
Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
Menon, Shashank (author) / Song, Xiaoyu (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 305-314
2022-03-17
Conference paper
Electronic Resource
English
Unguided Cracking in Unsaturated Soils through a Coupled Nonlocal Poromechanics Model
| British Library Conference Proceedings | 2022
| UB Braunschweig | 2004
Numerical modelling of coupled poromechanics processes
| Taylor & Francis Verlag | 2006
| TIBKAT | 2004