Results 61 to 70 of about 341,597 (301)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Influence of shear stress applied during flow stoppage and rest period on the mechanical properties of thixotropic suspensions [PDF]

open access: yes, 2008
We study the solid mechanical properties of several thixotropic suspensions as a function of the shear stress history applied during their flow stoppage and their aging in their solid state.
G. Ovarlez   +7 more
core   +5 more sources

Dynamic Elastic Modulus of Grinding Wheel

open access: yesJournal of the Japan Society of Precision Engineering, 1970
In this paper, the relation between the dynamic elastic modulus measured by ultrasonic pulse method and the grade of the grinding wheel is discussed.The results obtained are as follows: 1. The grade of the grinding wheel can be determined by the dynamic elastic modulus.2.
Kuniaki UMINO, Noboru SHINOZAKI
openaire   +2 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Analysis by the Two-Fluids Model of the Dynamical Behavior of a Viscoelastic Fluid Probed by Dynamic Light Scattering

open access: yes, 2004
The dynamic properties of a model transient network have been studied by dynamic light scattering. The network is formed by microemulsion droplets linked by telechelic polymers (modified hydrophilic polymers with two grafted hydrophobic stickers).
Appell, Jacqueline   +3 more
core   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan   +3 more
wiley   +1 more source

Dynamic mechanical behaviour of polyamide 11/Barium titanate ferroelectric composites [PDF]

open access: yes, 2010
Dynamic mechanical analysis and tensile test have been used to characterize the mechanical behaviour of hybrid composites. Barium titanate (BaTiO3) is the submicron filler and polyamide 11 (PA 11) the matrix.
Capsal, Jean-Fabien   +4 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

High-Modulus Asphalt Mixtures with High RAP Content

open access: yesZhongwai Gonglu
The old asphalt mixtures are characterized by high hardness and fine aggregate, which is aligned with the characteristics of high-modulus asphalt mixtures.
HUANG You   +4 more
doaj   +1 more source

Melt compounding with graphene to develop functional, high-performance elastomers [PDF]

open access: yes, 2013
Rather than using graphene oxide, which is limited by a high defect concentration and cost due to oxidation and reduction, we adopted cost-effective, 3.56 nm thick graphene platelets (GnPs) of high structural integrity to melt compound with an elastomer ...
Araby, Sherif   +8 more
core  

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