Results 81 to 90 of about 15,444,292 (276)

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

open access: yesAdvanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Observer-Based Finite-Time H∞ Control of Singular Markovian Jump Systems

open access: yesJournal of Applied Mathematics, 2012
This paper addresses the problem of finite-time H∞ control via observer-based state feedback for a family of singular Markovian jump systems (SMJSs) with time-varying norm-bounded disturbance.
Yingqi Zhang   +3 more
doaj   +1 more source

Global exponential stability of Markovian jumping stochastic impulsive uncertain BAM neural networks with leakage, mixed time delays, and α-inverse Hölder activation functions

open access: yesAdvances in Difference Equations, 2018
This paper concerns the problem of enhanced results on robust finite time passivity for uncertain discrete time Markovian jumping BAM delayed neural networks with leakage delay.
C. Maharajan   +4 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

A naturally anti-diffusive compressible two phases Kapila model with boundedness preservation coupled to a high order finite volume solver [PDF]

open access: yes, 2015
This paper presents a two phases flow model combined with a high order finite volume solver on unstructured mesh. The solver is highly conservative and preserves the sharpness of the interface without any reconstruction.
DELIGANT, Michael   +2 more
core   +1 more source

Finite-Time $H_{\infty}$ Model Reference Control of SLPV Systems and its Application to Aero-Engines

open access: yesIEEE Access, 2019
In this paper, the finite-time H∞ model reference tracking control problem for switched linear parameter-varying (SLPV) systems is considered. The associated error SLPV system is obtained by designing the SLPV reference model based on a set of ...
Xiaoping Huang, Caiyun Wu, Yiping Liu
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

An Explicit Constitutive Reconstruction Framework for Mechanical Characterization of Miniaturized 3D‐Printed Specimens

open access: yesAdvanced Engineering Materials, EarlyView.
An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng   +4 more
wiley   +1 more source

Direct experimental evidence of time-temperature superposition at finite strain for an amorphous polymer network [PDF]

open access: yes, 2015
The time-temperature superposition property of an amorphous polymer acrylate network is characterized at infinitesimal strain by standard dynamic mechanical analysis tests.
GILORMINI, Pierre   +4 more
core   +1 more source

Resilient - Filtering of Uncertain Markovian Jumping Systems within the Finite-Time Interval

open access: yesAbstract and Applied Analysis, 2013
This paper studies the resilient - filtering problem for a class of uncertain Markovian jumping systems within the finite-time interval. The objective is to design such a resilient filter that the finite-time - gain from the unknown input to an ...
Shuping He
doaj   +1 more source

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