Results 101 to 110 of about 157,229 (275)

An energy residual-based approach to gradient effects within the mechanics of generalized continua

open access: yesJournal of the Mechanical Behavior of Materials, 2012
Generalized continua exhibiting gradient effects are addressed through a method grounded on the energy residual (ER)-based gradient theory by the first author and coworkers.
Polizzotto Castrenze, Pisano Aurora A.
doaj   +1 more source

Interpretation and modeling of the averaged equations for a fluid-solid flow [PDF]

open access: yes
A self-consistent derivation of the conservation laws is given for flows of a fluid-solid mixture. A unified analytical framework for obtaining constitutive relations is provided.
Hwang, Guann-Jiun, Shen, Hayley H.
core   +1 more source

The Renal Activity Index for Lupus Identifies Active Renal Disease and Treatment Response in Adult Patients With Systemic Lupus Erythematosus and Lupus Nephritis

open access: yesArthritis Care &Research, EarlyView.
Objective We evaluated the ability of the Renal Activity Index for Lupus (RAIL) to discriminate active lupus nephritis (LN) in adult patients with active systemic lupus erythematosus (SLE) and differentiate LN treatment response. Methods Urine samples from adults with biopsy‐proven active class III and IV LN from TULIP‐LN (active LN group ...
Hermine I. Brunner   +12 more
wiley   +1 more source

A unified creep-plasticity model suitable for thermo-mechanical loading [PDF]

open access: yes
An experimentally based unified creep-plasticity constitutive model was implemented for 1070 steel. Accurate rate and temperature effects were obtained for isothermal and thermo-mechanical loading by incorporating deformation mechanisms into the ...
Sehitoglu, H., Slavik, D.
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Application of elasto-viscoplastic Bodner-Partom constitutive equations in finite element analysis

open access: yesComputer Assisted Methods in Engineering and Science, 2022
A finite element implementation of the unified elasto-viscoplastic theory of Bodner-Partom for non-linear analysis is investigated in detail. Description of the Bodner-Partom constitutive equations is presented .
Andrzej Ambroziak
doaj  

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Generalized characteristics method for elastic wave propagation problems [PDF]

open access: yes
Characteristic equations are derived in generalized curvilinear coordinates. Linear elastic, isotropic, and homogeneous constitutive equations have been used in the derivation.
Ziv, M.
core   +1 more source

Analysis on the Invariant Properties of Constitutive Equations of Hydrodynamics in the Transformation between Different Reference Systems [PDF]

open access: yes, 2014
The velocities of the same fluid particle observed in two different reference systems are two different quantities and they are not equal when the two reference systems have translational and rotational movements relative to each other.
Li, Jun
core  

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