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Peridynamic modeling and analysis of interfacial crack propagation by hydraulic fracturing in layered shale SCIE
期刊论文 | 2025 , 184 | COMPUTERS AND GEOTECHNICS
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Abstract :

Hydraulic fractures at the bedding interface in layered shale will give rise to various phenomena including penetration, diversion and offset which significantly influence the production of shale gas exploitation. It is persistent challenge to simulate the uncertain fracture propagation paths induced by hydraulic fracturing when encountering interfaces. In this study, an alternative peridynamic model is proposed to investigate the interfacial crack propagation by hydraulic fracturing in layered shale. The water pressure loading process is described through equivalently transforming the water pressure applied on fracture surfaces into the water pressure density on broken bonds. The interface model and its cracking criterion are derived by employing bilinear cohesive zone model, which effectively characterize the interactions between rocks with different properties on different sides of the bedding plane. The proposed model is validated through comparison with experimental results, and then is further employed to investigate the complex hydraulic fracture propagation near bedding interfaces. It is found that smaller angle between hydraulic fracturing direction and bedding may lead to better fracturing effects and higher gas extraction in layered shale.

Keyword :

Bedding interface Bedding interface Fluid-solid interaction Fluid-solid interaction Hydraulic fracture Hydraulic fracture Layered shale Layered shale Peridynamics Peridynamics

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GB/T 7714 Lu, Yingru , Cai, Zhuang , Huang, Dan et al. Peridynamic modeling and analysis of interfacial crack propagation by hydraulic fracturing in layered shale [J]. | COMPUTERS AND GEOTECHNICS , 2025 , 184 .
MLA Lu, Yingru et al. "Peridynamic modeling and analysis of interfacial crack propagation by hydraulic fracturing in layered shale" . | COMPUTERS AND GEOTECHNICS 184 (2025) .
APA Lu, Yingru , Cai, Zhuang , Huang, Dan , Yao, Xuehao , Ma, Qipeng , Chen, Ding . Peridynamic modeling and analysis of interfacial crack propagation by hydraulic fracturing in layered shale . | COMPUTERS AND GEOTECHNICS , 2025 , 184 .
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Modelling and analysis of structure failure under fluid-impacting loading using a multi-resolution SPH-PD coupling model SCIE
期刊论文 | 2025 , 186 | COMPUTERS AND GEOTECHNICS
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Tsunami, as a severe marine disaster, significantly affects the safety of livelihoods and infrastructure in coastal communities. To address the problems of large deformation and fracture in coastal structures under fluid-impacting, as well as the large-scale ratio between the tsunami and the structures, we employ smoothed particle hydrodynamics (SPH) and peridynamics (PD) to respectively describe fluid flow and solid structure damage. A disguised ghost particle coupling scheme treating PD particles as virtual particles is adopted to construct the fluid-structure interaction. A non-uniform discrete of SPH method is utilized to solve a large-domain water flow problem, with particles near solid regions smoothly transitioning to a refined distribution. Meanwhile, PD employs an even more refined particle discretization approach. Considering the different stable computational time steps for solids and fluids in explicit time integration, a coupled time-integration scheme for fluid-structure interaction that allows for different time steps is proposed. Based on these algorithms, the efficacy and correctness of SPH-PD in simulating the impact of tsunami on solid structure is validated through a series of numerical examples. These examples include the failure analysis of fluid-structure-foundation interaction, the convergence analysis of tsunami impacting pressures, and the failure analysis of solid structures by fluid--structure-foundation interaction.

Keyword :

Fluid-structure interaction Fluid-structure interaction Large deformation and fracture Large deformation and fracture Peridynamics Peridynamics Smoothed particle hydrodynamics Smoothed particle hydrodynamics Tsunami Tsunami

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GB/T 7714 Chen, Ding , Yao, Xuehao , Ma, Qipeng et al. Modelling and analysis of structure failure under fluid-impacting loading using a multi-resolution SPH-PD coupling model [J]. | COMPUTERS AND GEOTECHNICS , 2025 , 186 .
MLA Chen, Ding et al. "Modelling and analysis of structure failure under fluid-impacting loading using a multi-resolution SPH-PD coupling model" . | COMPUTERS AND GEOTECHNICS 186 (2025) .
APA Chen, Ding , Yao, Xuehao , Ma, Qipeng , Yu, Zeyang , Huang, Dan , Huang, Wenxiong . Modelling and analysis of structure failure under fluid-impacting loading using a multi-resolution SPH-PD coupling model . | COMPUTERS AND GEOTECHNICS , 2025 , 186 .
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