Results 31 to 40 of about 13,656,626 (360)

Dispersion and localisation in structured Rayleigh beams

open access: yesInternational Journal of Solids and Structures, 2014
18 pages, 11 ...
Piccolroaz, Andrea, Movchan, A. B.
openaire   +3 more sources

Poincaré Bessel beams: structure and propagation [PDF]

open access: yesJournal of Optics, 2019
Non-separable superpositions of polarization and spatial modes in Gaussian beams have shown rich patterns of spatially-variable polarization encoded in the transverse mode of the light, with the potential for many applications. In this work we investigate encoding similar types of superpositions in Bessel beams.
Brianna M Holmes, Enrique J Galvez
openaire   +3 more sources

Finite Element Coding of Functionally Graded Beams under Various Boundary and Loading Conditions

open access: yesJournal of Applied Research on Industrial Engineering, 2017
Detailed formulation and coding of exact finite element is carried out to study the static behavior of a layered beam structure. The beam element is modelled based on the first-order shear deformation theory and it is assumed to be composed of three ...
Othman Al-Hawamdeh   +2 more
doaj   +1 more source

Effects of Structural Parameters on the Dynamics of a Beam Structure with a Beam-Type Vibration Absorber [PDF]

open access: yesAdvances in Acoustics and Vibration, 2012
A beam-type absorber has been known as one of the dynamic vibration absorbers used to suppress excessive vibration of an engineering structure. This paper studies an absorbing beam which is attached through a visco-elastic layer on a primary beam structure.
Mothanna Y. Abd   +3 more
openaire   +2 more sources

Transfer matrix method for elastic-plastic problem of space-curved beam structure

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Problems of space-curved beam structures have been extensively studied by many researchers. Stress analyses for the structural problems are conducted based on a finite element method, boundary element method, or frame structure method.
Sho-ichi KURODA   +2 more
doaj   +1 more source

Numerical Analysis of a New Block-Type Rail Bearing Beam for the Mid-Low-Speed Maglev Train

open access: yesAdvances in Civil Engineering, 2021
In this study, a new block-type rail bearing beam is presented, which consists of a cast-in-place base and prefabricated blocks. The finite element analysis is conducted to assess the proposed new rail bearing beam structure. The performed finite element
Wubin Wang   +4 more
doaj   +1 more source

Failure mechanism and fracture aperture characteristics of hard thick main roof based on voussoir beam structure in longwall coal mining

open access: yesEnergy Science & Engineering, 2019
The mechanism and fracture aperture of thick hard roof failure were theoretically analyzed from the perspective of elastoplastic mechanics. A uniform load cantilever beam was established by considering the voussoir beam structure and stress condition ...
Chunwang Zhang   +7 more
semanticscholar   +1 more source

Estimation of Phonon Dispersion Relations Using Correlation Effects Among Thermal Displacements of Atoms

open access: yesAtom Indonesia, 2015
Neutron diffraction measurement of powder α-Fe sample at 295 K was carried out at the high resolution powder diffractometer installed at Japan Proton Accelerator Research Complex (J-PARC). Crystal parameters were determined from Rietveld analysis.
Y. Ishikawa   +5 more
doaj   +1 more source

Multi-Damage Detection for Steel Beam Structure [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2016
Damage detection has been focused by researchers because of its importance in engineering practices. Therefore, different approaches have been presented to detect damage location in structures.
Reza Farokhzad   +3 more
doaj   +1 more source

Modelling a Cracked Beam Structure Using the Finite Element Displacement Method

open access: yesShock and Vibration, 2019
A new model is presented for studying the effects of crack parameters on the dynamics of a cracked beam structure. The model is established by the finite element displacement method.
H. Long   +4 more
semanticscholar   +1 more source

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