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Ahmed Yosri, Maysara Ghaith, Mohamed Ismaiel Ahmed and Wael El-Dakhakhni
The efficient management and remediation of contaminated fractured aquifers necessitate an accurate prediction of the spatial distribution of contaminant concentration within the system. Related existing analytical solutions are only applicable to single...
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Shidong Wang, Qing Zhang, Li Zhao, Yi Jin and Jiazhong Qian
The application of research results is mainly in the fields of rock fracture seepage, geothermal development and utilization, etc.
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Sascha Frank, Thomas Heinze, Mona Ribbers and Stefan Wohnlich
Flow and transport processes in fractured systems are not yet fully understood, and it is challenging to determine the respective parameters experimentally. Studies on 10 samples of 2 different sandstones were used to evaluate the reproducibility of trac...
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Zhou Chen, Hongbin Zhan, Guiqing Zhao, Yong Huang, Yefei Tan
Pág. 1 - 17
Understanding solute transport in fractured rocks is of particular importance in many applications. Aperture values ranging from 4.7 to 8.7 mm and Reynolds number (Re) values at 9.38~1743.8 were set for investigating fluid flow through synthetic horizont...
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Yong-Wook Jeong and Woochang Jeong
The aim of this study is to numerically analyze spatial behaviors of solute particle transport in a single fracture with spatially correlated variable apertures under application of effective normal stress conditions. The numerical results show that solu...
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Tiankui Guo, Zhanqing Qu, Facheng Gong and Xiaozhi Wang
Conventional hydraulic fracturing is not effective in target oil development zones with available wellbores located in the azimuth of the non-maximum horizontal in-situ stress. To some extent, we think that the radial hydraulic jet drilling has the funct...
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Kun Zhang, Pengbo Chang, Jianxi Ren, Zheng Liu and Ke Wang
The fractured rock mass in the western cold region is affected by freezing and thawing disasters and is prone to local damage and fracture along the fissures? ends. The fatigue damage induced by repeated frost heave and traffic loads seriously endangers ...
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Lichuang Jin, Wanghua Sui and Jialu Xiong
This paper presents an experimental investigation on chemical grouting in a permeated fracture replica considering its roughness. Tests of grouting with flowing water in the fracture replica were carried out under different Bardon?s standard roughness pr...
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Kai Liu, Fangli Wang, Wei Pan, Le Yang, Shuwei Bai, Qiang Zhu and Mingbo Tong
In order to determine the average behavior time of widespread fatigue damage (WFD) in an aircraft multi-site damage (MSD) structure and complete the fatigue analysis of WFD sensitive parts, this paper adopts a probabilistic method to analyze the crack in...
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Gang Zhao, Tian Qiu and Peng Liu
The pre-swirl stator-rotor system is a common and important structure in gas turbines, and its main function is to provide cold air to the turbine blades with a low relative total temperature. Under normal conditions, the boundaries of the system are sym...
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Jaejun Kim, Joe M. Kang, Changhyup Park, Yongjun Park, Jihye Park and Seojin Lim
This paper presents a fast, reliable multi-objective history-matching method based on proxy modeling to forecast the production performances of shale gas reservoirs for which all available post-hydraulic-fracturing production data, i.e., the daily gas ra...
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Tivadar M. Tóth, László Molnár, Sándor Körmös, Nóra Czirbus and Félix Schubert
Numerous fractured hydrocarbon reservoirs exist in the metamorphic basement of the Pannonian Basin in Hungary. Many decades of experience in production have proven that these reservoirs are highly compartmentalised, resulting in a complex mosaic of perme...
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José Luis Gómez-Royuela, Almudena Majano-Majano, Antonio José Lara-Bocanegra, José Xavier and Marcelo F. S. F. de Moura
In the present work, single- and double-dowel joints following different geometric configurations are experimentally and numerically investigated to derive the splitting behaviour of beech wood (Fagus sylvatica L.), one of the most widespread hardwood sp...
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Yusuf O. Busari, Yupiter H. P. Manurung, Martin Leitner, Yusuf L. Shuaib-Babata, Muhd F. Mat, Hassan K. Ibrahim, David Simunek and Mohd Shahar Sulaiman
This research presents the numerical evaluation of fatigue crack growth of structural steels S355 and S960 based on Paris? law parameters (C and m) that are experimentally determined with a single edge notched tension (SENT) specimen using optical and cr...
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Balraj Muthusamy, Ching-Kong Chao, Ching-Chi Hsu and Meng-Hua Lin
The incidence of humerus greater tuberosity (GT) fractures is about 20% in patients with proximal humerus fractures. This study aimed to investigate the biomechanical performances of the humerus GT fracture stabilized by a locking plate with rotator cuff...
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L.G. Margolin
In this paper I will take a close look at a statistical crack model (SCM) as is used in engineering computer codes to simulate fracture at high strain rates. My general goal is to understand the macroscopic behavior effected by the microphysical processe...
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Mengxiong Zhao, Tieying Wu, Zhenhua Zhao, Lulu Liu, Gang Luo and Wei Chen
Ultrasonic resonance fatigue test method at 20 kHz related to the very high cycle fatigue (VHCF) aims to accelerate a time-consuming experiment. In this paper, an ultrasonic fatigue device with a data acquisition system was improved for monitoring and re...
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Fei Wang, Meng Wang, Mohaddeseh Mousavi Nezhad, Hao Qiu, Peng Ying and Caoyuan Niu
The objective of this paper is to investigate the complete process of dynamic crack propagation in brittle materials under different loading rates. By using Improved Single Cleavage Semi-Circle (ISCSC) specimens and Split Hopkinson Pressure Bar equipment...
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Makoto Akama and Akira Kiuchi
Rolling contact fatigue cracks in rail and wheel undergo non-proportional mixed mode I/II/III loading. Fatigue tests were performed to determine the coplanar and branch crack growth rates on these materials. Sequential and overlapping mode I and III load...
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Alexander Butorin,Fedor Krasnov
Pág. 7 - 16
The study considers the actual issue of improving the accuracy of mapping in fracturing using microseismic monitoring. The given question is first of all in connection with increasing volume of hydraulic fracturing at the development of modern hydrocarbo...
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