Results 1 to 10 of about 94,140 (312)

Simulation of Fracture Morphology during Sequential Fracturing

Processes, 2022
During hydraulic fracturing, the aperture of hydraulic fractures will shrink by the in-situ stress, but will not fully close because of the existence of proppant inside the fracture. In previous studies, few people noticed the existence of proppant, which has resulted in the inaccuracy of simulation results. In this study, based on the boundary element
Peng Zheng, Tuan Gu, Erhu Liu, Ming Zhao, Desheng Zhou   +4 more
openaire   +2 more sources

Relationship Between Carpal Bone Morphology and Distal Radius Fracture Pattern

Journal of Contemporary Medicine, 2022
Background: In this study, we examined whether carpal bones (lunate, hamate, capitate) morphologies and fourth metecarp-capitate articulation have an effect on the distal radius fracture pattern.
Sertaç Meydaneri, Hasan Arık, Tamer Coşkun   +2 more
doaj   +1 more source

Fracture Behavior of Single-Crystal Sapphire in Different Crystal Orientations

Crystals, 2021
In order to study the anisotropy of fracture toughness and fracture mechanism of single-crystal sapphire, the three-point bending tests and the single-edge V-notch beam (SEVNB) were used to test the fracture toughness of A-plane, C-plane, and M-plane ...
Shizhan Huang, Jiaming Lin, Ningchang Wang, Bicheng Guo, Feng Jiang, Qiuling Wen, Xizhao Lu   +6 more
doaj   +1 more source

An experimental study of the fracture morphology of marble under dynamic loading

Shuiwen dizhi gongcheng dizhi, 2022
To investigate the fracture morphology characteristics of marble under dynamic loading, the dynamic compression and splitting tests of rock samples under different impact velocities are carried out using the split-Hopkinson pressure bar.
Weixiang WANG, Zhiliang WANG, Shuailong JIA, Zhitang Lu   +3 more
doaj   +1 more source

Influence factors of unpropped fracture conductivity of shale

Energy Science & Engineering, 2020
Hydraulic fracture is widely performed to enhance oil and gas production in the development of unconventional reservoirs. This paper proposes a numerical model for the calculation of the unpropped fracture conductivity of shale.
Cong Lu, Yu Lu, Xinghao Gou, Ye Zhong, Chi Chen, Jianchun Guo   +5 more
doaj   +1 more source

Experimental study on stress corrosion of X12Cr13 stainless steel in natural gas environment

Journal of Materials Research and Technology, 2020
Uniform experimental design method is applied to the slow strain rate testing of X12Cr13 stainless steel in natural gas environment. The influence of H2S concentration, CO2 concentration, ambient temperature and pressure on stress corrosion ...
Xiaohang Chen, Qingyu Li, Juyi Pan, Jingting Liu, Xuesong Wei, Songying Chen   +5 more
doaj   +1 more source

Effects of Silicon on Mechanical Properties and Fracture Toughness of Heavy-Section Ductile Cast Iron

Metals, 2015
The effects of silicon (Si) on the mechanical properties and fracture toughness of heavy-section ductile cast iron were investigated to develop material for spent-nuclear-fuel containers. Two castings with different Si contents of 1.78 wt.% and 2.74 wt.%
Liang Song, Erjun Guo, Liping Wang, Dongrong Liu   +3 more
doaj   +1 more source

The Effect of Solvent Additions on theMechanical Properties of Epoxy [PDF]

Engineering and Technology Journal, 2010
The effect of the TolueneC6H5CH3 and Acetone (CH3)2CO additions on themechanical properties of cured Epoxy is studied. Different weight percentages ofToluene (0, 4, 8, 10 & 14 wt%) and Acetone (0, 3, 5, 8 & 10 wt%) were usedunder curing temperatures (40 ...
Khalid K. Abbass, Akram R. Jabur, Saad B. H. Farid   +2 more
doaj   +1 more source

Morphology of Fracture Nonunion and Osteomyelitis

Veterinary Clinics of North America: Small Animal Practice, 1991
The author reviews the types and pathogenesis of fractures that fail to heal. A discussion of acute osteomyelitis and the causes of hematogenous disease is included. Classifications of osteomyelitis and idiopathic bone inflammations are described.
Professor, Department of Comparative and Experimental Pathology, University of Florida College of Veterinary Medicine, Gainesville, FloridaDepartment of Comparative and Experimental PathologyUniversity of Florida College of Veterinary MedicineGainesvilleFlorida ( host institution ), Carroll Woodard, J., Riser, Wayne H.   +2 more
openaire   +3 more sources

Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
The formation and development of serrated chip morphology and adiabatic shear bands (ASBs) and the microstructure of fracture surfaces in the serrated chips during hard machining of hardened alloy steel are observed, the mechanism of adiabatic shear ...
Chunzheng DUAN, Minjie WANG
doaj   +1 more source