Results 81 to 90 of about 413,318 (238)

Hyperspherical Close-Coupling Calculation of D-wave Positronium Formation and Excitation Cross Sections in Positron-Hydrogen Scattering

, 1995
Hyperspherical close-coupling method is used to calculate the elastic, positronium formation and excitation cross sections for positron collisions with atomic hydrogen at energies below the H(n=4) threshold for the J=2 partial wave.
Lin, C. D., Zhou, Yan
core   +1 more source

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

Materials 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  

A model of a general elastic curved rod

Mathematical Methods in the Applied Sciences, 2002
AbstractWe indicate a new approach to the deformation of three‐dimensional curved rods with variable cross‐section. The model consists of a system of nine ordinary differential equations for which we prove existence and uniqueness via the coercivity of the association bilinear form.
Ignat, Anca, Sprekels, Jürgen, Tiba, Dan   +2 more
openaire   +4 more sources

Elastic flow of curves with partial free boundary

Nonlinear Differential Equations and Applications NoDEA, 2023
Abstract We consider a curve with boundary points free to move on a line in $\R^2$, which evolves by the $L^2$--gradient flow of the elastic energy, that is a linear combination of the Willmore and the length functional.For such planar evolution problem we study the short and long--time existence.
openaire   +3 more sources

A discrete framework to find the optimal matching between manifold-valued curves

, 2018
The aim of this paper is to find an optimal matching between manifold-valued curves, and thereby adequately compare their shapes, seen as equivalent classes with respect to the action of reparameterization.
Brigant, Alice Le
core  

Uniform fatigue damage tolerance assessment for additively manufactured and cast Al-Si alloys: An elastic-plastic fracture mechanical approach

Additive Manufacturing Letters, 2022
Lightweight Al-Si alloys are used in the automotive and railway industry due to their excellent strength-to-weight ratio and near-net-shape manufacturing. In additive manufacturing and casting, the near-net-shape manufacturing results in a non-homogenous
Jochen Tenkamp, Felix Stern, Frank Walther   +2 more
doaj  

Discussion: “Elastic Properties of Curved Tubes” (Vigness, Irwin, 1943, Trans. ASME, 65, pp. 105–117) [PDF]

, 1943
Arthur McCutchan
openalex   +1 more source

Discussion: “An Experimental Surface-Wave Method for Recording Force-Time Curves in Elastic Supports” (Goodier, J. N., Jahsman, W. E., and Ripperger, E. A., 1959, ASME J. Appl. Mech., 26, pp. 3–7) [PDF]

, 1959
Enrico Volterra
openalex   +1 more source

Backlund transformations and knots of constant torsion

, 1996
The Backlund transformation for pseudospherical surfaces, which is equivalent to that of the sine-Gordon equation, can be restricted to give a transformation on space curves that preserves constant torsion.
Calini, Annalisa, Ivey, Thomas
core   +2 more sources

Quadramode materials: Their design method and wave property

Materials & 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