Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Eli Altus"'
Publikováno v:
ChemistryOpen
When a homogenous electric field is applied to polyynes (C10 and C20) perpendicular to their long axis, they bend to form an arch. The height of the arch is proportional to the intensity of the electric field. The direction of the bend and its magnit
Publikováno v:
Composites Part B: Engineering. 207:108579
Graphite-Phenolic (GPh) laminates, used as structural parts under hygro-mechano-thermal loadings, may suffer premature interlaminar failures due to strength reduction during service life. The aim of the present study was to show that significant tran
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 84:123-133
Graphite-Phenolic (GPh) laminates are used as structural parts under mechanical and hygrothermal loadings. High shrinkage strains during drying may cause premature interlaminar failure which originates from the hygromechanical coupling. In this study
Autor:
Elisha Rejovitzky, Eli Altus
Publikováno v:
International Journal of Damage Mechanics. 22:268-284
This study focuses on an analytical investigation of the common characteristics of fatigue models based on a single damage variable. The general single damage variable constitutive equation is used to extract several fundamental properties. It is sho
Autor:
Eli Altus, Elisha Rejovitzky
Publikováno v:
International Journal of Fatigue. 37:54-59
Fatigue life tests under varying stress levels have revealed deviations from the linear Palmgren–Miner (PM) rule. The non-commutative damage accumulation has been demonstrated in two-level fatigue tests: longer life under low-to-high (L-H) loading
Publikováno v:
Probabilistic Engineering Mechanics. 28:11-17
This work analyzes the deflection of clamped nano-beam due to stochastic surface stresses, induced by adsorption/desorption of surrounding particles. Both linear and non-linear effects (mid-plane stretching) are considered. A mechanical model for 1D
Autor:
Eli Altus, Elisha Rejovitzky
Publikováno v:
International Journal of Fatigue. 33:1235-1243
A stochastic two-parameter Micromechanical Fatigue Model (MFM), which considers morphological aspects of microcrack coalescence and arrest, is proposed. The material is modeled as an ensemble of elements with a stochastic failure strain distribution.
Autor:
Eli Altus, M. Kirikov
Publikováno v:
Computers & Structures. 89:1563-1573
A functional gradient for the buckling load (P) with respect to the structural shape function (S) is introduced for shape optimization. The gradient (P","S) is derived analytically by functional differentiation of the governing equation with respect
Autor:
Eli Altus, Elisha Rejovitzky
Publikováno v:
Procedia Engineering. 10:1121-1126
Fatigue life formulas are still based on phenomenological models which adopt simple relations directly from experiments for different loading conditions and use fitted material parameters. The combination of enormous complexity of fatigue damage proc
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 953:98-102
The mechanical response of three types of molecular rods to various loads was computationally examined. These involved stretching, compression and several modes of bending. The rods studied were (i) polyynes ranging from C 4 to C 20 ( 1 ), (ii) [2]-[