Results 11 to 20 of about 12,056 (269)

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

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

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

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

Accurate calculation of the eigenvalues of a new simple class of superpotentials in SUSY quantum mechanics [PDF]

open access: yes, 2013
We obtain accurate eigenvalues for two recently derived SUSY partner Hamiltonians. We improve the Rayleigh-Ritz variational method proposed by the authors and show how to apply the Riccati-Pad\'{e} method to those particular partner ...
Fernández, Francisco M.
core   +4 more sources

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

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 Natural Oscillations of a Thin Elastic Wavy Shell of an Open Profile

open access: yesJournal of Architectural and Engineering Research, 2021
The article touches upon the problem of natural oscillations of a thin elastic wavy shell of an open profile. The proposed method for determining the numerical values of the lowest frequencies and the corresponding forms of natural oscillations of shells
Victor Dmitriy Eryomin
doaj   +1 more source

Home - About - Disclaimer - Privacy