Zobrazeno 1 - 10
of 948
pro vyhledávání: '"Cohesive element"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract The joints are existing throughout the underground rock mass. It is of great significance to investigate the shear performance of the rock mass to maintain the stability of the underground structure. In this study, we conducted orthogonal te
Externí odkaz:
https://doaj.org/article/c30f9c43d51743a8abd3a35d6abe67f7
Autor:
Zhaowei ZHANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 1, Pp 57-64 (2024)
In order to further analyze the propagation path and evolution law of hydraulic fractures in coal rock complex, from the perspective of stress field, coal rock interface strength and coal seam bedding dip angle, a hydraulic fracture model of coal roc
Externí odkaz:
https://doaj.org/article/3e63d3c7a0dc4d728045fe401362ec5a
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-25 (2024)
Abstract Indirect fracturing in the roof of broken soft coal seams has been demonstrated to be a feasible technology. In this work, the No. 5 coal seam in the Hancheng block was taken as the research object. Based on the findings of true triaxial hyd
Externí odkaz:
https://doaj.org/article/34d982475673495e812e24ef1e969768
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 17, Iss 1, Pp 1-16 (2023)
Abstract This study presented a meso-model for the fracture analysis of the reinforced concrete (RC) structure. A modeling method of RC meso-structure was proposed, and the rebars were allowed to separate from the concrete. The model was built using
Externí odkaz:
https://doaj.org/article/04c12c8204a54c468a612d20a196ad53
Autor:
Jianfa Wu, Mingyang Wu, Yintong Guo, Haoyong Huang, Zhen Zhang, Guanghai Zhong, Junchuan Gui, Jun Lu
Publikováno v:
Frontiers in Energy Research, Vol 11 (2024)
With the depletion of conventional reservoir development, reservoir fracturing under deep high geo-stress and high geo-stress difference conditions is receiving increasing attention. Deep reservoirs typically require multi-cluster fracturing to achie
Externí odkaz:
https://doaj.org/article/2df96c302f324b7ba4fde6a529c8476f
Autor:
Heri Heriana, Rebecca Mae Merida Catalya Marbun, Bambang Kismono Hadi, Djarot Widagdo, Muhammad Kusni
Publikováno v:
Journal of Composites Science, Vol 8, Iss 4, p 158 (2024)
Due to their anisotropic behavior, composite structures are weak in transverse direction loading. produces transverse cracks, which for a laminated composite, may lead to delamination and total failure. The transition from transverse crack to delamin
Externí odkaz:
https://doaj.org/article/772dd4293c8349d0a1d6519fecee55ea
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Natural fractures in reservoirs have a significant influence on hydraulic fracturing propagation. However, existing analyses have neglected the effect of natural fracture deformation parameters, including crack normal stiffness and shear stiffness on
Externí odkaz:
https://doaj.org/article/07deaf084c434382ab4e29ae26dc6921
Publikováno v:
Applied Sciences, Vol 14, Iss 4, p 1484 (2024)
To investigate the influence of the crack dip angle on the strength of rock specimens, uniaxial compression tests were conducted on granite specimens containing pre-existing cracks. The strain energy evolution during the loading process was analyzed,
Externí odkaz:
https://doaj.org/article/b99c3e882666412da24e1efb07fbd334
Publikováno v:
Materials, Vol 16, Iss 24, p 7677 (2023)
Fatigue delamination damage is one of the most important fatigue failure modes for laminated composite structures. However, there are still many challenging problems in the development of the theoretical framework, mathematical/physical models, and n
Externí odkaz:
https://doaj.org/article/a98d108f5b9848119019a4ed276e46c1
Autor:
Jianhua Zhang, Xiaoyu Wang, Ke Sun, Yueqi Lai, Dianwei Gao, Won-Hee Kang, Bin Wang, Bingjun Wang
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 1, p 28 (2023)
This study conducted ice-induced vibration analysis on offshore platform structures using the cohesive element method (CEM). The efficacy of this method in simulating the interaction between sea ice and the platform structure is verified by comparing
Externí odkaz:
https://doaj.org/article/23d43c0c2f7142eba78111301c910178