Results 11 to 20 of about 166,550 (244)

An Open Database to Evaluate the Fundamental Frequency of Historical Masonry Towers through Empirical and Physics-Based Formulations

open access: yesBuildings, 2023
The fundamental frequency plays a primary role in the dynamic assessment of Cultural Heritage towers. Local and global features may impact its value: geometric, material features, interaction with the soil and adjacent buildings, aging, the construction ...
Arnaud Montabert   +6 more
doaj   +1 more source

Inverse-designed gyrotropic scatterers for non-reciprocal analog computing. [PDF]

open access: yesNanophotonics
Abstract While conventional von Neumann based machines are increasingly challenged by modern day requirements, electromagnetic analog computing devices promise to provide a platform that is highly parallel, efficient and fast. Along this paradigm, it has been shown that arrays of subwavelength electromagnetic scatterers can be used as solvers of ...
Hadjiantoni N   +4 more
europepmc   +2 more sources

Thermal Buckling Analysis of Laminated Composite plates with General Elastic Boundary Supports

open access: yesJournal of Engineering, 2020
In this study, the modified Rayleigh-Ritz method and Fourier series are used to determine the thermal buckling behavior of laminated composite thin plates with a general elastic boundary condition applied to in-plane uniform temperature distribution ...
Mohammed Basheer Alabas   +1 more
doaj   +1 more source

Generalized stress field in granular soils heap with Rayleigh–Ritz method

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2017
The stress field in granular soils heap (including piled coal) will have a non-negligible impact on the settlement of the underlying soils. It is usually obtained by measurements and numerical simulations.
Gang Bi
doaj   +1 more source

Energy methods for curved composite beams with partial shear interaction

open access: yesCurved and Layered Structures, 2015
This paper presents a derivation of the Rayleigh- Betti reciprocity relation for layered curved composite beams with interlayer slip. The principle of minimum of potential energy is also formulated for two-layer curved composite beams and its ...
Ecsedi István, Lengyel Ákos József
doaj   +1 more source

Buckling of elastically restrained nonlocal carbon nanotubes under concentrated and uniformly distributed axial loads [PDF]

open access: yesMechanical Sciences, 2019
Buckling of elastically restrained carbon nanotubes is studied subject to a combination of uniformly distributed and concentrated compressive loads. Governing equations are based on the nonlocal model of carbon nanotubes.
M. T. A. Robinson, S. Adali
doaj   +1 more source

Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method

open access: yesMaterials Research Express, 2020
This research predicts theoretically post-critical axial buckling behavior of truncated conical carbon nanotubes (CCNTs) with several boundary conditions by assuming a nonlinear Winkler matrix.
M. Malikan, V. Eremeyev
semanticscholar   +1 more source

Simplest-expression integrals involving beam-column eigenmodes

open access: yesArchives of Mechanics, 2012
Novel integrals, in their simplest form, involving beam-column eigenfunctions and derivatives are presented. All the integrals arise in computational stability analysis of frames.
J.I. Colombo, C.A. Morales
doaj   +1 more source

On the plastic buckling of curved carbon nanotubes

open access: yesTheoretical and Applied Mechanics Letters, 2020
This research, for the first time, predicts theoretically static stability response of a curved carbon nanotube (CCNT) under an elastoplastic behavior with several boundary conditions. The CCNT is exposed to axial compressive loads.
Mohammad Malikan
doaj   +1 more source

Rayleigh--Ritz Majorization Error Bounds of Mixed Type [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2017
20 pages, 1 figure.
Zhu, Peizhen, Knyazev, Andrew V.
openaire   +2 more sources

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