Results 71 to 80 of about 29,804 (243)

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao   +3 more
wiley   +1 more source

On the use of finite strip method for buckling analysis of moderately thick plate by refined plate theory and using new types of functions

open access: yesLatin American Journal of Solids and Structures
A numerical method is developed for the buckling analysis of moderately thick plate with different boundary conditions. The procedure use the finite strip method in conjunction with the refined plate theory (RPT).
Saeed Mirzaei   +2 more
doaj   +1 more source

Free Vibration Analysis of Composite Conical Shells with Variable Thickness

open access: yesShock and Vibration, 2020
Free vibration of conical shells of variable thickness is analysed under shear deformation theory with simply supported and clamped free boundary conditions by applying collocation with spline approximation.
Saira Javed   +2 more
doaj   +1 more source

On the stability of the $\mu(I)$-rheology for granular flow

open access: yes, 2017
This article deals with the Hadamard instability of the so-called $\mu(I)$ model of dense rapidly-sheared granular flow, as reported recently by Barker et al. (2015,this journal, ${\bf 779}$, 794-818).
Goddard, Joe, Lee, Jaesung
core   +1 more source

Isogeometric analysis for functionally graded microplates based on modified couple stress theory [PDF]

open access: yes, 2016
Analysis of static bending, free vibration and buckling behaviours of functionally graded microplates is investigated in this study. The main idea is to use the isogeometric analysis in associated with novel four-variable refined plate theory and quasi ...
Abdel-Wahab, M.   +5 more
core   +2 more sources

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

open access: yesDeep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang   +4 more
wiley   +1 more source

Vibration analysis of a sandwich cylindrical shell in hygrothermal environment

open access: yesNanotechnology Reviews, 2021
The sandwich structures are three- or multilayered structures such that their mechanical properties are better than each single layer. In the current research, a three-layered cylindrical shell including a functionally graded porous core and two ...
Zhang Chunwei   +11 more
doaj   +1 more source

Hysteretic and chaotic dynamics of viscous drops in creeping flows with rotation

open access: yes, 2007
It has been shown in our previous publication (Blawzdziewicz,Cristini,Loewenberg,2003) that high-viscosity drops in two dimensional linear creeping flows with a nonzero vorticity component may have two stable stationary states. One state corresponds to a
Bławzdziewicz   +9 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Analysis of cross-ply laminated plates using isogeometric analysis and unified formulation

open access: yesCurved and Layered Structures, 2014
In this paper, we study the static bending and free vibration of cross-ply laminated composite plates using sinusoidal deformation theory. The plate kinematics is based on the recently proposed Carrera Unified Formulation (CUF), and the field variables ...
Natarajan S.   +2 more
doaj   +1 more source

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