Results 11 to 20 of about 7,573,905 (257)

4D Synchrotron X-ray Imaging of Grain Scale Deformation Mechanisms in a Seismogenic Gas Reservoir Sandstone During Axial Compaction [PDF]

open access: yes, 2022
Understanding the grain-scale processes leading to reservoir compaction during hydrocarbons production is crucial for enabling physics-based predictions of induced surface subsidence and seismicity hazards.
McBeck, J. A.   +9 more
core   +2 more sources

Quantification of large and localized deformation in granular materials [PDF]

open access: yes, 2011
Quantifying large deformation in granular assemblies using concepts originating from continuum mechanics is a challenging task because of (1) the discontinuous nature of granular displacement, which does not allow the definition of a continuum measure of
Dafalias, Y F   +6 more
core   +1 more source

Gross plastic deformation of axisymmetric pressure vessel heads [PDF]

open access: yes, 2006
The gross plastic deformation and associated plastic loads of four axisymmetric torispherical pressure vessels are determined by two criteria of plastic collapse: the ASME twice elastic slope (TES) criterion and the recently proposed plastic work ...
Camilleri, Duncan   +2 more
core   +4 more sources

Strain analysis of fruit tree branch under large deflection considering flexural deformation characteristics

open access: yesJournal of Biomechanical Science and Engineering, 2021
Fruit tree branches are deflected with large deformation under bending loads applied owing to fruit weight and environmental burdens such as wind and snow. Stress and strain analyses in large bending deformations of tree branches can prevent tree failure.
Kenta ISHII   +3 more
doaj   +1 more source

Stability mechanisms of soft rock mining roadways through roof cutting and pressure relief: an exploratory model experiment

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionSoft rock mining roadways are severely deformed and damaged during coal mining. Blindly increasing the support strength not only has little effect but also wastes material resources.MethodsMaintaining the original support parameters, model ...
Qingwen Zhu   +5 more
doaj   +1 more source

Mechanism and Classification of Tectonic-induced Large Deformation of Soft Rock Tunnels

open access: yes工程科学与技术, 2021
Based on the analysis of large deformation cases of tunnel surrounding rock both at home and abroad, the present study found that the factors such as in-situ stress, geological structure and formation lithology are the basic conditions for the occurrence
Guangze ZHANG   +8 more
doaj  

Study of sheet flutter with large deformation in passage flow

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This study reports about the numerical simulation of the sheet flutter in passage flow with large deformation and vortex shedding from trailing-edge. The equation of motion for flexible sheet has the Kelvin-Voigt-type material damping.
Akio YAMANO   +3 more
doaj   +1 more source

An improved meshless method for finite deformation problem in compressible hyperelastic media

open access: yesVietnam Journal of Mechanics, 2021
Hyperelastic materials are considered as special category of elastic solid materials because of their nonlinear complicated constitutive laws. Due to large strain state, the behaviour of such materials is often considered in finite deformation analysis.
Nha Thanh Nguyen   +3 more
doaj   +1 more source

Finite Deformation of Scleral Tissue under Electrical Stimulation: An Arbitrary Lagrangian-Eulerian Finite Element Method

open access: yesBioengineering, 2023
The sclera is considered as the principal load-bearing tissue within the eye. The sclera is negatively charged; thus, it exhibits mechanical response to electrical stimulation.
Jafar Arash Mehr, Hamed Hatami-Marbini
doaj   +1 more source

Influence of the Xianshuihe Fault Zone on In-Situ Stress Field of a Deep Tunnel and its Engineering Effect

open access: yesFrontiers in Earth Science, 2022
The in-situ stress distribution near a fault zone is affected by factors such as tectonic movement and rock mass property deterioration, and it often shows unique characteristics and further affects the mechanical response of the rock mass and the safety
Dong Yuan   +17 more
doaj   +1 more source

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