Results 21 to 30 of about 413,318 (238)

Axial Compression Behaviour and Modelling of Pultruded Basalt-Fibre-Reinforced Polymer (BFRP) Tubes

open access: yesBuildings, 2023
Laminated fibre-reinforced polymer (FRP) tubes are increasingly used as compression members in large-span spatial structures due to their high bearing capacity, corrosion resistance, and superior stability compared to high-strength steel pipes.
Chuntao Zhang, Yu Chen, Mei Dou
doaj   +1 more source

Characteristics of energy evolution during total stress-strain in rocks under uniaxial compression

open access: yesMeikuang Anquan, 2023
To study the energy evolution of rocks under uniaxial compression, uniaxial compression and uniaxial step loading and unloading tests were performed on granite, sandstone, and coal, and the stress-strain curves under different conditions were obtained ...
LI Dongwen   +3 more
doaj   +1 more source

Laser Ultrasound Investigations of AlScN(0001) and AlScN(11-20) Thin Films Prepared by Magnetron Sputter Epitaxy on Sapphire Substrates

open access: yesMicromachines, 2022
The laser ultrasound (LU) technique has been used to determine dispersion curves for surface acoustic waves (SAW) propagating in AlScN/Al2O3 systems.
Elena A. Mayer   +7 more
doaj   +1 more source

Morphological analysis of cells by means of an elastic metric in the shape space [PDF]

open access: yes, 2020
Shape analysis is of great importance in many fields, such as computer vision, medical imaging, and computational biology. This analysis can be performed considering shapes as closed planar curves in the shape space.
Epifanio, Irene   +2 more
core   +1 more source

Lectures on Elastic Curves and Rods [PDF]

open access: yesAIP Conference Proceedings, 2008
These five lectures constitute a tutorial on the Euler elastica and the Kirchhoff elastic rod. We consider the classical variational problem in Euclidean space and its generalization to Riemannian manifolds. We describe both the Lagrangian and the Hamiltonian formulation of the rod, with the goal of examining the (Liouville‐Arnol'd) integrability.
David A. Singer   +3 more
openaire   +1 more source

Convergence of elastic flows of curves into manifolds

open access: yesNonlinear Analysis, 2022
For a given $p\in[2,+\infty)$, we define the $p$-elastic energy $\mathscr{E}$ of a closed curve $ :\mathbb{S}^1\to M$ immersed in a complete Riemannian manifold $(M,g)$ as the sum of the length of the curve and the $L^p$--norm of its curvature (with respect to the length measure).
openaire   +4 more sources

Fractal pattern formation at elastic-plastic transition in heterogeneous materials [PDF]

open access: yes, 2009
Fractal patterns are observed in computational mechanics of elastic-plastic transitions in two models of linear elastic/perfectly-plastic random heterogeneous materials: (1) a composite made of locally isotropic grains with weak random fluctuations in ...
Feder   +25 more
core   +1 more source

Curves in the Lorentz-Minkowski plane: elasticae, catenaries and grim-reapers

open access: yesOpen Mathematics, 2018
This article is motivated by a problem posed by David A. Singer in 1999 and by the classical Euler elastic curves. We study spacelike and timelike curves in the Lorentz-Minkowski plane 𝕃2 whose curvature is expressed in terms of the Lorentzian ...
Castro Ildefonso   +2 more
doaj   +1 more source

Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation

open access: yesNanomaterials, 2022
The influence of the indenter angle on the deformation mechanisms of single-crystal Si was analyzed via molecular dynamics simulations of the nanoindentation process. Three different types of diamond conical indenters with semi-angles of 45°, 60°, and 70°
Young Jin Chung   +2 more
doaj   +1 more source

Effect of negative permeability on elastic wave propagation in magnetoelastic multilayered composites

open access: yesTheoretical and Applied Mechanics Letters, 2017
With the advent of left-handed magnetic materials, it is desirable to develop high-performance wave devices based on their novel properties of wave propagation.
W. Wang, Y.Q. Guo, W.Q. Chen
doaj   +1 more source

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