Results 51 to 60 of about 3,067,838 (357)

Elastic curves on the sphere

open access: yes, 1992
This paper deals with the derivation of equations suitable for the computation of elastic curves on the sphere. To this end equations for the main invariants of spherical elastic curves are given. A new method for solving geometrically constraint Differential equations is used to compute the curves for given initial values.
Crouch, Peter E., Brunnett, Guido
openaire   +3 more sources

The dynamics of electron beam scattering on metal membranes: nanopore formation in metal membranes using transmission electron microscopy

open access: yesNano Convergence, 2018
The dynamics of nanopore formation in metal membranes using the highly focused and high energy electron beams (e-beams) of transmission electron microscopy instruments was investigated.
Hyun-Mi Kim   +6 more
doaj   +1 more source

Mechanical properties and failure mechanisms of 3D six-directional braided composites at elevated and liquid nitrogen temperatures

open access: yesMaterials Letters: X, 2020
3D six-directional braided carbon/epoxy composites are fabricated successfully, and their mechanical properties and failure mechanisms at room, elevated and liquid nitrogen temperatures are reported.
Wen-fen Han, Dian-sen Li, Lei Jiang
doaj   +1 more source

Simplifying Transforms for General Elastic Metrics on the Space of Plane Curves [PDF]

open access: yesSIAM Journal of Imaging Sciences, 2018
In the shape analysis approach to computer vision problems, one treats shapes as points in an infinite-dimensional Riemannian manifold, thereby facilitating algorithms for statistical calculations such as geodesic distance between shapes and averaging of
Tom Needham, S. Kurtek
semanticscholar   +1 more source

Research on Fracture Toughness of Flattened Brazilian Disc Specimen after High Temperature

open access: yesHigh Temperature Materials and Processes, 2016
Fracture toughness is an important parameter to study fracture characteristic of rock under external loads. Based on splitting tensile test on flattened Brazilian disc specimen of rock after high temperature, load–displacement curves of rock sample in ...
Liu Shi, Xu Jinyu, Wang Peng, Fang Xinyu
doaj   +1 more source

Test of Uniaxial Tensile Mechanical Properties of ECTFE Foils at Various Temperatures

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Uniaxial tensile tests of ethylene-chloro-tri-fluoro-ethylene (ECTFE) foils were conducted at a thickness of 250 μm and various low and high temperatures (-50, -40, -30, -20, -10, 0, 10, 20, 30, 40, 50, 60, 70, and 80 ℃).
LIU Changjiang, ZHAO Bing, CHEN Wujun
doaj   +1 more source

Laser induced Zero-Group Velocity resonances in Transversely Isotropic cylinder

open access: yes, 2015
The transient response of an elastic cylinder to a laser impact is studied. When the laser source is a line perpendicular to the cylinder axis, modes guided along the cylinder are generated.
Ahmad, Faiz   +4 more
core   +2 more sources

Mechanical characterization of solution-derived nanoparticle silver ink thin films [PDF]

open access: yes, 2007
Mechanical properties of sintered silver nanoparticles are investigated via substrate curvature and nanoindentation methods. Substrate curvature measurements reveal that permanent microstructural changes occur during initial heating while subsequent ...
Greer, Julia R., Street, Robert A.
core   +1 more source

Interlaminate Deformation in Thermoplastic Composite Laminates: Experimental-Numerical Correlation

open access: yesEPJ Web of Conferences, 2010
The interlaminar deformation behaviors of thermoplastic AS4/PEEK composite laminates subjected to static tensile loading are investigated by means of microscopic moiré interferometry with high spatial resolution. The fully threedimensional orthotropic
Fang Y., Wang S., Tong J., Shen M.
doaj   +1 more source

Quadramode materials: Their design method and wave property

open access: yesMaterials & Design, 2021
Extremal materials with certain vanishing eigenvalues of their elastic matrix are able to manipulate elastic wave with their extremal static property, the devices designed with such materials can work in a broad frequency band, which is highly demanded ...
Yu Wei, Xiaoning Liu, Gengkai Hu
doaj   +1 more source

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