Results 51 to 60 of about 35,508 (260)

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

Theoretical Determination of Forming Limit Stress Diagram for Steel 1021 Sheet

open access: yesTikrit Journal of Engineering Sciences, 2013
Forming limit stress diagram represent the maximum acceptable limits of  principal stresses in sheet metal forming. This diagram show the limits of major and minor true stresses for different strain paths (uniaxial tension, plane strain and equibiaxial ...
Anas O. Balod
doaj  

Establishment of Fracture Prediction Model of Muti-point Incremental Forming on Sheet Material

open access: yesJournal of Harbin University of Science and Technology, 2018
Aiming at the problem that square sheet metal is easy to be fracturedexisted in the forming process, we put forward an experimental method of response surface,which uses square cone as experimental material,to simulate the multi-point incremental ...
XIAO Hong-li   +3 more
doaj   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

open access: yesAdvanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan   +2 more
wiley   +1 more source

Multi-objective optimization under uncertainty for sheet metal forming

open access: yesMATEC Web of Conferences, 2016
Aleatory uncertainties in material properties, blank thickness and friction condition are inherent and irreducible variabilities in sheet metal forming.
Lafon Pascal   +2 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Heat treatment conditions for forming AA6022 aluminum sheet in a forming process with intermediate heat treatment [PDF]

open access: yesMATEC Web of Conferences
The series of processes of pre-forming, heat treatment and forming for AA5182-O is known as one of forming process. However, it is possible that the appropriate intermediate heat temperature is different from that of AA5182-O when the process is applied ...
Nakamura Shuki   +2 more
doaj   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

A Holistic Review of Surface Texturing in Sheet Metal Forming: From Sheet Rolling to Final Forming

open access: yesLubricants
Skin-pass cold rolling is a crucial step in sheet metal production, modifying the sheet surface topography, ensuring thickness uniformity, and enhancing tribological performance. A key factor in this process is the surface texturing of work rolls, which,
Paulo L. Monteiro, Henara L. Costa
doaj   +1 more source

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