Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Xuhua Ren"'
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Deformation memory effect (DME) is a common property of the rock. A method called Deformation Rate Analysis (DRA) which is based on DME provides a brand-new approach to measuring in situ stress. When rock DME is applied in engineering, it is necessar
Externí odkaz:
https://doaj.org/article/f440016846724a91bc5babaee58161d6
Publikováno v:
Materials, Vol 17, Iss 4, p 920 (2024)
This article investigates the microscopic mechanism of crack initiation and propagation in three-dimensional embedded cracks in brittle materials containing circular holes. First, a method for the development of transparent, brittle materials is prop
Externí odkaz:
https://doaj.org/article/8db71d4aebc148569f74bf65dd747d24
Publikováno v:
Case Studies in Thermal Engineering, Vol 47, Iss , Pp 103085- (2023)
The Thermo-Hydro-Mechanical-Damage (THMD) process inside rock structures is a complex multi-field coupling problem, which is also regarded as the hotspot worldwide. In view of this situation, a fracture mark ξ is introduced to reflect the “active
Externí odkaz:
https://doaj.org/article/4b758baf3c404b869abf1c31ac789b68
Publikováno v:
Case Studies in Construction Materials, Vol 18, Iss , Pp e02018- (2023)
The applications of Smoothed Particle Hydrodynamics (SPH) into the chemical - mechanical - damage coupling problems of cement - based materials have been rarely investigated. Based on this background, the diffusion equations of chemical ion concentra
Externí odkaz:
https://doaj.org/article/cff577e42e854a15ae5b6b967d9bfcd2
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 6, Pp 1245-1257 (2022)
Ultrasonic fracturing (UF) can be used to form crack networks for oil or gas in the mining industry and hard rock excavation. In this paper, the three-dimensional internal laser-engraved crack method (3D-ILC) is introduced to make penny-shaped intern
Externí odkaz:
https://doaj.org/article/89a95069e3ab4264a4308dc4f462b4cd
Publikováno v:
Deep Underground Science and Engineering, Vol 1, Iss 1, Pp 25-39 (2022)
Abstract Complex weak structural planes and fault zones induce significant heterogeneity, discontinuity, and nonlinear characteristics of a rock mass. When an earthquake occurs, these characteristics lead to extremely complex seismic wave propagation
Externí odkaz:
https://doaj.org/article/89d7189fb58041c491d01dcb48e9cffc
Numerical Simulation Analysis of Fracture Propagation in Rock Based on Smooth Particle Hydrodynamics
Publikováno v:
Materials, Vol 16, Iss 19, p 6560 (2023)
The mechanical properties of fractured rock have always been a focal point in the rock mechanics field. Based on previous research, this paper proposes improvements to the SPH method and applies it to the study of crack propagation in fractured rocks
Externí odkaz:
https://doaj.org/article/528d95e91f8c443a8d74aaa7f52d927a
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 3, Pp 757-769 (2022)
Similar to hydraulic fracturing (HF), the coalescence and fracture of cracks are induced within a rock under the action of an ultrasonic field, known as ultrasonic fracturing (UF). Investigating UF is important in both hard rock drilling and oil and
Externí odkaz:
https://doaj.org/article/647431a79312498299a7d04255fd070e
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 3, Pp 421-428 (2021)
The simulation of crack propagation processes in rock engineering has been not only a research hot spot among scholars but also a challenge. Based on this background, a new numerical method named improved kernel of smoothed particle hydrodynamics (IK
Externí odkaz:
https://doaj.org/article/8fea28def09f467fb0d36b8053ecda53
Publikováno v:
Materials, Vol 16, Iss 7, p 2640 (2023)
Fissures and holes widely exist in rock mechanics engineering, and, at present, their failure mechanisms under complex compress and shear stress states have not been well recognized. In our work, a fracture mark, ξ, is introduced, and the kernel fun
Externí odkaz:
https://doaj.org/article/826aa64e0be54fefb177d49c77bc1ea3