Results 101 to 110 of about 17,553 (306)

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Isotropy group of Lotka-Volterra derivations [PDF]

open access: yes
In this paper, we study the isotropy group of Lotka-Volterra derivations of $K[x_{1},\cdots,x_{n}]$, i.e., a derivation $d$ of the form $d(x_{i})=x_{i}(x_{i-1}-C_{i}x_{i+1})$. If $n=3$ or $n \geq 5$, we have shown that the isotropy group of $d$ is finite.
Rewri, Himanshu, Kour, Surjeet
core  

Mathematical Modeling of Charge Power Assessment with Exclusion of Loess Subsidence by Deep Hydraulic Blasts

open access: yesAdvanced Engineering Research
Introduction. Subsidence loess soils, widespread in Russia, China and Central Asia, are a challenge in modern construction due to their tendency to subsidence and low strength under external loads.
E. O. Tarasenko
doaj   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Spectral Bounds on Orbifold Isotropy [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2005
20 pages, 6 ...
openaire   +2 more sources

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello   +7 more
wiley   +1 more source

The Isotropy Group for the Topos of Continuous G-Sets

open access: yes, 2017
The objective of this thesis is to provide a detailed analysis of a new invariant for Grothendieck topoi in the special case of the topos of continuous G-sets and continuous G-equivariant maps.
Chambers, Kristopher
core   +1 more source

Composition-induced structural phase transitions in the (Ba1xLax)2In2O5+x (0pxp0.6) system [PDF]

open access: yes, 2005
Composition-induced structural phase changes across the high temperature, fast oxide ion conducting (Ba1xLax)2In2O5+x, 0pxp0.6, system have been carefully analysed using hard mode infrared (IR) powder absorption spectroscopy, X-ray powder diffraction and
Tenailleau, C.   +33 more
core   +1 more source

Achieving uniform hardness in additively manufactured TA15 alloy via Ni or Cu additions

open access: yesMaterials Research Letters
The coarse columnar grains that typically occur during additive manufacturing introduce mechanical anisotropy. Both to achieve a columnar-to-equiaxed transition (CET) and to investigate the effects of high growth restriction factor elements on the ...
Leyu Cai   +5 more
doaj   +1 more source

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé   +9 more
wiley   +1 more source

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