Results 101 to 110 of about 344,449 (301)

Free and forced wave propagation in a Rayleigh-beam grid: flat bands, Dirac cones, and vibration localization vs isotropization

, 2018
In-plane wave propagation in a periodic rectangular grid beam structure, which includes rotational inertia (so-called 'Rayleigh beams'), is analyzed both with a Floquet-Bloch exact formulation for free oscillations and with a numerical treatment ...
Bigoni, D., Bordiga, G., Cabras, L., Piccolroaz, A.   +3 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Application of the Higher-Order Hamilton Approach to the Nonlinear Free Vibrations Analysis of Porous FG Nano-Beams in a Hygrothermal Environment Based on a Local/Nonlocal Stress Gradient Model of Elasticity. [PDF]

Nanomaterials (Basel), 2022
Penna R, Feo L, Lovisi G, Fabbrocino F.
europepmc   +1 more source

Influence of the Fixation Stiffness on the Vibrations of Short Single-Binding Beams

Механика машин, механизмов и материалов, 2018
The influence of the fixation stiffness on the vibrations eigenfrequencies of short single-binding beams is analyzed. The Timoshenko’s equation is used to describe the beam motion.
Alexander O. Shimanovsky, Jozef S. Bocko
doaj  

Asymptotic analysis of natural frequencies of axisymmetric oscillations of orthotropic cylindrical shells in an infinite elastic medium, liquid filled

Structural Mechanics of Engineering Constructions and Buildings, 2019
Aim of the research. Free axisymmetric fluctuation of a cylindrical orthotropic cover, the infinite length contacting to the infinite elastic medium and filled with liquid is investigated. Methods.
Famil A Seyfullayev, Gulnar R Mirzayeva, Shusha A Kerimova   +2 more
doaj   +1 more source

Faraday instability on viscous ferrofluids in a horizontal magnetic field: Oblique rolls of arbitrary orientation

, 2002
A linear stability analysis of the free surface of a horizontally unbounded ferrofluid layer of arbitrary depth subjected to vertical vibrations and a horizontal magnetic field is performed.
A. Cebers, A. Kudrolli, A. Lange, Adrian Lange, B. Abou, B. Abou, C. Weizhong, D. Binks, D. Binks, E. Cerda, F. Pétrélis, H. Arbell, H. Arbell, H.W. Müller, H.W. Müller, H.W. Müller, J. Bechhoefer, J. Browaeys, J.-C. Bacri, K. Kumar, M. Faraday, M. Silber, M.D. Cowley, O. Lioubashevski, P. Chen, P. Chen, R.E. Zelazo, S. Kumar, S.T. Milner, V. V. Mekhonoshin, W. Zhang, W.S. Edwards   +31 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Simulation of Free Vibrations of Multi-Walled Carbon Nanotube Based on Non-Local Theory of Thin Elastic Orthotropic Shells

Механика машин, механизмов и материалов, 2013
The mathematical model of multi-walled carbon nanotube embedded in an elastic matrix is proposed. The effect of the surrounding elastic medium are considered using the Winkler-type spring constant. The tube may be prestressed by external forces.
G.I. Mikhasev, A.N. Sheiko
doaj  

Free Vibration Analysis of Porous FGM Plates on Elastic Foundations with Temperature-Dependent Material Properties

Mathematics
This study investigates the free vibration behaviors of functionally graded (FGM) plates with a porous structure, resting on a Kerr-type elastic foundation, while accounting for thermal effects and complex material property distributions.
Aleksandar Radaković, Dragan Čukanović, Aleksandar Nešović, Petar Knežević, Milan T. Djordjević, Gordana Bogdanović   +5 more
doaj   +1 more source

Identification of Modal Frequencies From the Pre-Stressed Concrete Bridge Dynamic Response to Different Sources of Dynamic Excitation

Communications, 2018
The natural frequencies and mode shapes are unique characteristics of each mechanical structure. Their prediction is a crucial part of each dynamic experimental measurement. However, the proper identification of higher natural frequencies and mode shapes
Jozef Melcer, Jan Kortis, Lubos Daniel, Peter Fabo   +3 more
doaj   +1 more source