Analysis of prestressed cable structure through an energy minimization technique

2021 ◽  
Author(s):  
Kaique Moreira Matos Magalhães ◽  
Alexandre de Macêdo Wahrhaftig ◽  
Reyolando Brasil
Keyword(s):  
Energy Minimization ◽  
Cable Structure ◽  
Minimization Technique ◽  
Prestressed Cable

Large-Strain Axisymmetric Deformation of Cylindrical Shells

1987 ◽  
Vol 54 (2) ◽  
pp. 287-291 ◽  
Author(s):  
G. W. Brodland ◽  
H. Cohen
Keyword(s):  
Nonlinear Equations ◽  
Energy Minimization ◽  
Parametric Analysis ◽  
Large Strain ◽  
Cylindrical Shells ◽  
Radial Force ◽  
Axisymmetric Deformation ◽  
The Other ◽  
Large Strains ◽  
Minimization Technique

Nonlinear equations are derived for the axisymmetric deformation of thin, cylindrical shells made of Mooney-Rivlin materials and subject to arbitrarily large strains and rotations. These equations are then implemented numerically using an energy minimization technique. Finally, an extensive parametric analysis is done of cylindrical shells which are clamped at one end and loaded with either a radial force or an edge moment uniformly distributed along the circumference of the other end.

Finite Temperature Quasicontinuum Methods

1998 ◽  
Vol 538 ◽  
Author(s):  
Vivek Shenoy ◽  
Vijay Shenoy ◽  
Rob Phillips
Keyword(s):  
Free Energy ◽  
Energy Minimization ◽  
Finite Temperature ◽  
Degrees Of Freedom ◽  
Elastic Moduli ◽  
Dislocation Core ◽  
Minimization Method ◽  
Free Energy Minimization ◽  
Minimization Technique ◽  
Frame Work

AbstractIn this paper we extend the quasi-continuum method to study equilibrium properties of defects at finite temperatures. We present a derivation of an effective energy function to perform Monte Carlo simulations in a mixed atomistic and continuum setting. It is shown that the free energy minimization technique can be easily incorporated into the quasi-continuum frame work, permitting a reduction of the full set of atomistic degrees of freedom even in the finite temperature setting. The validity of the proposed methods is demonstrated by computing the thermal expansion and the temperature dependence of the elastic moduli for Cu. We also employ the quasi-continuum free energy minimization method to study the finite temperarure structure of a dislocation core in Al.

FAVORABLE SILICA MONOLAYER STRUCTURES ON THE Mo(112) SURFACE

2005 ◽  
Vol 12 (03) ◽  
pp. 449-456 ◽  
Author(s):  
I. N. YAKOVKIN
Keyword(s):  
Total Energy ◽  
Density Of States ◽  
Energy Minimization ◽  
Phonon Frequency ◽  
Experimental Results ◽  
Minimization Technique ◽  
Oxygen Atoms

Favored structures of SiO n monolayers on Mo (112) surface have been studied using the total energy minimization technique based on DFT semirelativistic approach. In the [ SiO 4] complexes, which form the c (2 × 2) silica structure on the Mo (112), the bonding of the Si atoms with the surface is accomplished through the oxygen atoms. The structure with a symmetric position of oxygen atoms has been found to be the most favorable. In this structure, two oxygen atoms occupy bridge-on-row sites on the Mo (112) surface, with Si atoms between them, while oxygen atoms in the troughs appear not in expected threefold sites, but adjust their positions along the middle lines of the troughs. Estimated main phonon frequency and density of states for the symmetric [ SiO 4] structure agree well with experimental results.

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