Results 61 to 70 of about 5,009,480 (335)

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

Laboratory Performance Evaluation of CIR-Emulsion and it Comparison Against CIR-Form Test Result from Phase II, Final Report TR-578 Phase III, December 2009 [PDF]

open access: yes, 2009
Currently, no standard mix design procedure is available for CIR-emulsion in Iowa. The CIR-foam mix design process developed during the previous phase is applied for CIR-emulsion mixtures with varying emulsified asphalt contents.

core  

Experimental Analysis of Dynamic Modulus and Phase Angle of High Modulus Asphalt Mixture [PDF]

open access: yes, 2011
To study the mechanical properties of high modulus asphalt mixtures, dynamic modulus and phase angle of these two mixtures are tested with Simple Performance Testing System under different temperatures, loading frequencies and confining pressures ...
Peng Wang   +3 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

Laboratory characterization of asphalt concrete ,mixtures using dynamic modulus test [PDF]

open access: yes, 2016
- Dynamic modulus is measure of HMA’s resistance to\ud deformation under haversine loading\ud \ud - Ratio of maximum stress to recoverable axial strain\ud \ud - Basic input parameter for material characterization in M-EPDG\ud \ud - Only performance test ...
Ali, Yasir
core  

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Validation of the New Mix Design Process for Cold In-Place Rehabilitation Using Foamed Asphalt, 2007 [PDF]

open access: yes, 2007
Asphalt pavement recycling has grown dramatically over the last few years as a viable technology to rehabilitate existing asphalt pavements. Iowa's current Cold In-place Recycling (CIR) practice utilizes a generic recipe specification to define the ...

core  

Experimental study on dynamic shear characteristics of loess under cyclic torsional shearing

open access: yesYantu gongcheng xuebao, 2020
The unsaturated intact loess has remarkable structured properties. Its structure is damaged by wetting and cyclic shear action, which leads to the development of shear and subsidence deformation of loess under earthquake.
SHAO Shuai 1, SHAO Sheng-jun 1, 2, CHEN Pan 1, YUAN Hao 1
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Dynamic Shear Modulus in Torsion of Human Dentin

open access: yesDental Materials Journal, 1988
The dynamic shear modulus of human dentin was measured using a torsion pendulum between 23°C and 150°C. Dentin had a relatively stable modulus in spite of increasing temperature. The shear moduli at 37°C for 20 specimens were in the range of 5.77×1010 dyne/cm2-1.06×1011 dyne/cm2.
ARIKAWA, Hiroyuki, INOUE, Katsuichiro
openaire   +3 more sources

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