Results 11 to 20 of about 654 (167)

Coseismic Stress Change and Viscoelastic Relaxation after the 2008 Great Sichuan Earthquake

Applied Sciences, 2022
Long-term stress accumulation influenced by coseismic stress changes and postseismic viscoelastic relaxation is considered critical to triggering giant earthquakes. Nevertheless, how the stress increase is interrupted by aftershocks and how it influences
Chaodi Xie, Ye Zhu, Yingfeng Ji, Weiling Zhu, Rui Qu, Yan Xu, Aitang Li   +6 more
doaj   +1 more source

Source Model and Triggered Aseismic Faulting of the 2021 Mw 7.3 Maduo Earthquake Revealed by the UAV-Lidar/Photogrammetry, InSAR, and Field Investigation

Remote Sensing, 2022
Multi-source datasets, including the UAV-Lidar/Photogrammetry, InSAR, and field investigation data, have been used for revealing the complex surface displacement pattern and focal mechanism of the 2021 Maduo Mw 7.3 earthquake. First, a co-seismic surface
Ying-Hui Yang, Qiang Xu, Jyr-Ching Hu, Yun-Sheng Wang, Xiu-Jun Dong, Qiang Chen, Yi-Jun Zhang, Hao-Liang Li   +7 more
doaj   +1 more source

Practical application of failure criteria in determining safe mud weight windows in drilling operations

Journal of Rock Mechanics and Geotechnical Engineering, 2014
Wellbore instability is reported frequently as one of the most significant incidents during drilling operations. Analysis of wellbore instability includes estimation of formation mechanical properties and the state of in situ stresses.
R. Gholami, A. Moradzadeh, V. Rasouli, J. Hanachi   +3 more
doaj   +1 more source

Evaluation of the Effect of Geomechanical Parameters and In Situ Stress on Tunnel Response Using Equivalent Mohr-Coulomb and Generalized Hoek-Brown Criteria

Geosciences, 2022
The generalized Hoek-Brown (GHB) failure criterion can estimate the rock mass parameters required for rock mechanics–related analyses such as numerical modeling in geomechanics.
Ali Saeidi, Côme Cloutier, Abbas Kamalibandpey, Alireza Shahbazi   +3 more
doaj   +1 more source

The Generalized Mohr-Coulomb Failure Criterion

Applied Sciences, 2023
With the construction of supertall buildings such as high earth dams, the linear envelope of the Mohr-Coulomb (M-C) failure criterion fitted to lower confined pressure would significantly underestimate the loading capacity of foundations, causing a huge ...
Dongshuai Tian, Hong Zheng
doaj   +1 more source

New Interface for Assessing Wellbore Stability at Critical Mud Pressures and Various Failure Criteria: Including Stress Trajectories and Deviatoric Stress Distributions

Energies, 2019
This study presents a new interface for wellbore stability analysis, which visualizes and quantifies the stress condition around a wellbore at shear and tensile failure.
Jihoon Wang, Ruud Weijermars
doaj   +1 more source

An analytical solution to wellbore stability using Mogi-Coulomb failure criterion

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Deep wellbores/boreholes are generally drilled into rocks for oil and gas exploration, monitoring of tectonic stresses purposes. Wellbore and tunnel in depth are generally in true triaxial stress state, even if the ground is under axisymmetric loading ...
Aditya Singh, K. Seshagiri Rao, Ramanathan Ayothiraman   +2 more
doaj   +1 more source

Simple Correlation to Evaluate Mohr-Coulomb Failure Criterion Using Uniaxial Compressive Strength

Journal of King Saud University: Engineering Sciences, 2002
The evaluation of Mohr-Coulomb failure criterion as well as other mechanical properties for reservoir rocks is essential for well planning, development and characterization of oil and gas reservoirs.
Musaed N.J. Al-Awad
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source