Results 101 to 110 of about 107,081 (312)

Experimental investigation of the effect of horizontal construction joints on the behavior of deep beams

Open Engineering
Construction joints serve as interruption points in the concrete placement process, which is necessary because it is often not feasible to pour concrete continuously in many structures.
Kadhum Saba Basim, Al-Zuhairi Alaa Hussein, Al-Zaidee Salah R.   +2 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Poisson's contraction effects in a deep laminated composite beam

, 2003
Poisson's contraction effects in a deep, asymmetrically stacked composite beam is studied in detail through a new finite element formulation. The exact solution of static part of the governing equation is used as interpolating function for displacements.
Chakraborty, A, Gopalakrishnan, S
core  

Investigation of conduction to keyhole mode transition [PDF]

, 2012
There are two very distinct welding modes in laser welding, keyhole and conduction mode. The characteristics of keyhole laser welding; mainly high penetration, high productivity and high aspect ratio have led the industry to focus more on this mode.
Goncalves Assuncao E, Goncalves Assuncao, Eurico   +1 more
core  

CVII. On the buckling of deep beams [PDF]

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1922
n ...
openaire   +2 more sources

Triple Junctions as Dislocation‐Like Defects: The Role of Grain Boundary Crystallography Revealed by Experiment and Atomistic Simulation

Advanced Engineering Materials, EarlyView.
Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink, Saba Saood, Peter Schweizer, Jörg Neugebauer, Gerhard Dehm   +4 more
wiley   +1 more source

Effects of electron beam injection on ethylene‐air combustion

, 1987
Results are presented of the first experiments in which high‐current electron beam injection is shown to modify the combustion of both lean and rich ethylene‐air mixtures.
R. A. Bosch, S. W. Bidwell, J. A. Sell, Sell, Jeffrey A., Tucker, John Edward, Repetti, T. E., Gilgenbach, Ronald M., J. E. Tucker, R. M. Gilgenbach, Bidwell, S. W., M. L. Brake, Bosch, R. A., Brake, Mary L., T. E. Repetti   +13 more
core   +1 more source

Dynamics of electron beam ablation of silicon dioxide measured by dye laser resonance absorption photography [PDF]

, 1998
The dynamics of electron beam ablation plumes have been characterized through the application of dye laser resonance absorption photography. The ablation of fused silica by a channelspark electron beam was studied by probing the near-ground state, 3p2 1D−
Kovaleski, S. D., Lau, Y. Y., S. D. Kovaleski, Gilgenbach, Ronald M., R. M. Gilgenbach, L. K. Ang, Ang, L. K., Y. Y. Lau   +7 more
core   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source