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Dynamic Phase-Field Modeling of Shear Fractures in Rocks Under Impact Loading
https://orcid.org/http://orcid.org/0000-0002-1706-0216
The phase-field method is a powerful method for simulating crack initiation, extension, branching, and coalescence. In this paper, we present a phase-field model for dynamic fracture in rock-like materials under multi-axial compression. Our dynamic phase-field model incorporates an energy decomposition method based on the Drucker–Prager failure criterion, allowing for a representation of asymmetric tensile–compressive fracture behavior under impact loading. Numerical results show that compared to conventional phase-field models, the new model is more suitable for rock fracture because of its capability of distinguishing between shear and compression fracture. In addition, laboratory experiments of pulse hydraulic fracturing were further conducted to validate the model.
A dynamic phase-field model of shear fracture in rocks is proposed.
This model has introduced a parameter that can be adjusted according to the tensile and compressive strengths, improving the model's accuracy.
Pulse hydraulic fracturing experiments were designed to confirm the accuracy of the numerical modeling.
Dynamic Phase-Field Modeling of Shear Fractures in Rocks Under Impact Loading
https://orcid.org/http://orcid.org/0000-0002-1706-0216
The phase-field method is a powerful method for simulating crack initiation, extension, branching, and coalescence. In this paper, we present a phase-field model for dynamic fracture in rock-like materials under multi-axial compression. Our dynamic phase-field model incorporates an energy decomposition method based on the Drucker–Prager failure criterion, allowing for a representation of asymmetric tensile–compressive fracture behavior under impact loading. Numerical results show that compared to conventional phase-field models, the new model is more suitable for rock fracture because of its capability of distinguishing between shear and compression fracture. In addition, laboratory experiments of pulse hydraulic fracturing were further conducted to validate the model.
A dynamic phase-field model of shear fracture in rocks is proposed.
This model has introduced a parameter that can be adjusted according to the tensile and compressive strengths, improving the model's accuracy.
Pulse hydraulic fracturing experiments were designed to confirm the accuracy of the numerical modeling.
Dynamic Phase-Field Modeling of Shear Fractures in Rocks Under Impact Loading
https://orcid.org/http://orcid.org/0000-0002-1706-0216
The phase-field method is a powerful method for simulating crack initiation, extension, branching, and coalescence. In this paper, we present a phase-field model for dynamic fracture in rock-like materials under multi-axial compression. Our dynamic phase-field model incorporates an energy decomposition method based on the Drucker–Prager failure criterion, allowing for a representation of asymmetric tensile–compressive fracture behavior under impact loading. Numerical results show that compared to conventional phase-field models, the new model is more suitable for rock fracture because of its capability of distinguishing between shear and compression fracture. In addition, laboratory experiments of pulse hydraulic fracturing were further conducted to validate the model.
A dynamic phase-field model of shear fracture in rocks is proposed.
This model has introduced a parameter that can be adjusted according to the tensile and compressive strengths, improving the model's accuracy.
Pulse hydraulic fracturing experiments were designed to confirm the accuracy of the numerical modeling.
Dynamic Phase-Field Modeling of Shear Fractures in Rocks Under Impact Loading
Rock Mech Rock Eng
Liu, Zhenghe (Autor:in) / Hao, Haoran (Autor:in) / Lian, Haojie (Autor:in) / Li, Hongbin (Autor:in) / Li, Yongsong (Autor:in) / Chen, Leilei (Autor:in)
Rock Mechanics and Rock Engineering ; 58 ; 3635-3652
01.03.2025
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Dynamic Phase-Field Modeling of Shear Fractures in Rocks Under Impact Loading
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