Results 21 to 30 of about 11,269 (260)

Study of Dynamic Brittle Fracture of Composite Lamina Using a Bond-Based Peridynamic Lattice Model

Advances in Materials Science and Engineering, 2019
We proposed a bond-based peridynamic lattice model for simulating dynamic brittle fracture of 2D composite lamina. Material orthogonal anisotropy was represented by rotating topological lattice structure instead of fiber directions. Analytical derivation
Jushang Guo, Weicheng Gao, Zhenyu Liu, Xiongwu Yang, Fengshou Li   +4 more
doaj   +1 more source

Rapid modeling of space structure of rock mass and the method of equivalent assignment

Energy Science & Engineering, 2019
Accurately grasping the spatial distribution characteristics of fractures is an important basis for computation and analysis of rock engineering. On the basis of field investigation, probability statistics, and numerical simulation, the fast modeling ...
Zhouquan Luo, Yaguang Qin, Wei Wang, Shaowei Ma, Lei Wen, Xuyang Zhang   +5 more
doaj   +1 more source

A new-generation Embedded Discrete Fracture Model calibration workflow applied to the characterization of complex naturally fracture reservoir

Petroleum Research, 2022
Characterizing natural fractures has a decisive effect on production forecasts in fractured oil and gas reservoirs. Discrete Fracture Networks (DFN) constitutes the main modeling framework for fractured geosystems.
Hongbing Xie, Mauricio Fiallos Torres, Penyu Cheng, Wei Yu, Yuzhong Xin, Jijun Miao, Muwei Cheng   +6 more
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Comparison Between Numerical Analysis and Actual Results for a Pull-Out Test

Engineering Transactions, 2019
The paper describes a computer analysis of the pull-out test used to determine the force needed to pull out a fragment of rock and the shape of this broken fragment. The analyzed material is sandstone and porphyry.
Jakub GONTARZ, Jerzy PODGÓRSKI, Józef JONAK, Marek KALITA, Michał SIEGMUND   +4 more
doaj   +1 more source

Hybrid Analytical and Numerical Approach for Modeling Fluid Flow in Simplified Three-Dimensional Fracture Networks

Geofluids, 2020
Modeling fluid flow in three-dimensional fracture networks is required in a wide variety of applications related to fractured rocks. Numerical approaches developed for this purpose rely on either simplified representations of the physics of the ...
D. Roubinet, S. Demirel, E. B. Voytek, X. Wang, J. Irving   +4 more
doaj   +1 more source

Development of an improved three-dimensional rough discrete fracture network model: Method and application

International Journal of Mining Science and Technology, 2023
Structure plane is one of the important factors affecting the stability and failure mode of rock mass engineering. Rock mass structure characterization is the basic work of rock mechanics research and the important content of numerical simulation.
Peitao Wang, Chi Ma, Bo Zhang, Qi Gou, Wenhui Tan, Meifeng Cai   +5 more
doaj   +1 more source

Numerical model of fracture formation in a coal seam [PDF]

E3S Web of Conferences, 2021
The article discusses the recovery process of fracture system formation after hydraulic fracturing in a coal seam, based on the conducted seismic studies using modern mathematical software packages. Model concepts of the fractures system development under hydrodynamic impact on a rock mass are considered, which make it possible to assess the nature of ...
Makeev Maxim, Sokolov Sergei, Kolmakova Anastasiya   +2 more
openaire   +2 more sources

Seismic wave modeling of fluid-saturated fractured porous rock: including fluid pressure diffusion effects of discretely distributed large-scale fractures [PDF]

Solid Earth
The scattered seismic waves of fractured porous rock are strongly affected by the wave-induced fluid pressure diffusion effects between the compliant fractures and the stiffer embedding background. To include these poroelastic effects in seismic modeling,
Y. Qi, Y. Qi, X. Chen, X. Chen, Q. Zhao, Q. Zhao, X. Luo, C. Feng   +7 more
doaj   +1 more source

Numerical model of fracture growth in hydraulic re-fracturing

Frattura ed Integrità Strutturale, 2019
Simulation of fracture propagation with FEM method generates the need of re-meshing to provide more accurate results. This raises a question of determining the direction and criterion of mesh modification. In the case of general-purpose CAE-packages, we deal with a stationary mesh, and the fracture path is usually represented as a chain of elements ...
Smetannikov, Oleg Yurievich, Kashnikov, Yuriy Aleksandrovich, Ashikhmin, Sergey Gennadievich, Kukhtinskiy, Artem Eduardovich   +3 more
openaire   +5 more sources

Poromechanical Modeling and Numerical Simulation of Hydraulic Fracture Propagation

ACS Omega, 2022
Hydraulic fracturing (HF) is an important technique for enhancing the permeability of petroleum and gas reservoirs. To understand the coupling response mechanism of fluid pressure and in situ stress during the expansion of hydraulic fractures-based on the theory of the fluid flow of seepage porous media and damage mechanics-a poromechanical model of ...
Xinsheng Zhang, Yunxing Cao, Li Wang, Guo Xiaohui   +3 more
openaire   +2 more sources