Results 51 to 60 of about 220,951 (294)

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

Numerical Analysis of the Submerged Horizontal Plate Device Subjected to Representative Regular and Realistic Irregular Waves of a Sea State

Fluids
This study numerically analyzes a submerged horizontal plate (SHP) device subjected to both regular and irregular waves. This device can be used either as a breakwater or a wave energy converter (WEC).
Gabrielle Ücker Thum, Rafael Pereira Maciel, Phelype Haron Oleinik, Luiz Alberto Oliveira Rocha, Elizaldo Domingues dos Santos, Flavio Medeiros Seibt, Bianca Neves Machado, Liércio André Isoldi   +7 more
doaj   +1 more source

Time Scale for Scour Beneath Pipelines Due to Long-Crested and Short-Crested Nonlinear Random Waves Plus Current

Journal of Marine Science and Engineering, 2021
This article derives the time scale of pipeline scour caused by 2D (long-crested) and 3D (short-crested) nonlinear irregular waves and current for wave-dominant flow.
Dag Myrhaug, Muk Chen Ong
doaj   +1 more source

Wave amplification in the framework of forced nonlinear Schrodinger equation: the rogue wave context

, 2015
Irregular waves which experience the time-limited external forcing within the framework of the nonlinear Schrodinger (NLS) equation are studied numerically.
Pelinovsky, Efim, Sergeeva, Anna, Slunyaev, Alexey   +2 more
core   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source

A comprehensive study on ship motion and load responses in short-crested irregular waves

International Journal of Naval Architecture and Ocean Engineering, 2019
Wave-induced ship motion and load responses are usually investigated on the assumption that the incident waves are long-crested. The realistic sea waves are however short-crested irregular waves.
Jialong Jiao, Chaohe Chen, Huilong Ren
doaj   +1 more source

IRREGULAR WAVE ATTACK ON A DOLOS BREAKWATER

Coastal Engineering Proceedings, 1974
The paper deals with two-dimensional tests on a scale model of a dolos breakwater. It is related with the construction of a large harbour at Sines for tankers with up to 1 million dwt, ore ships with up to 300,000 dwt, general cargo, etc. The main breakwater is design ed with 40 t dolos, in order to withstand waves with up to 1 1 m significant wave ...
openaire   +2 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Predictions of Ship Extreme Hydroelastic Load Responses in Harsh Irregular Waves and Hull Girder Ultimate Strength Assessment

Applied Sciences, 2019
In this paper, the hydroelastic motion and load responses of a large flexible ship sailing in irregular seaways are predicted and the hull girder ultimate strength is subsequently evaluated.
Jialong Jiao, Yong Jiang, Hao Zhang, Chengjun Li, Chaohe Chen   +4 more
doaj   +1 more source

Avalanches in the Weakly Driven Frenkel-Kontorova Model

, 1994
A damped chain of particles with harmonic nearest-neighbor interactions in a spatially periodic, piecewise harmonic potential (Frenkel-Kontorova model) is studied numerically.
A.A. Middleton, A.J. Lichtenberg, C. Tang, D. Sornette, D.P. Vallette, D.S. Fisher, D.W. Heermann, F. Vallet, F.J. Elmer, F.J. Elmer, Franz-Josef Elmer, G.L. Vasconcelos, G.S. Grest, H. Nakanishi, H.J. Jensen, H.J.S. Feder, H.J.S. Feder, J.M. Carlson, J.M. Carlson, L. Knopoff, L. Pietronero, L.P. Kadanoff, M. de Sousa Vieira, M. de Sousa Vieira, O. Pla, P. Bak, P. Bak, P. Bak, P. Bak, R. Burridge, S. Aubry, S. Aubry, S. Aubry, S. Ciliberto, S.N. Coppersmith, W. Kob, W. Kob, X. Che, Y.I. Frenkel   +38 more
core   +2 more sources