Results 81 to 90 of about 91,395,120 (258)

Influence of low length-to-diameter ratio and nozzle pressure ratio in an abruptly expanded flow

, 2015
This paper presents an investigation on the efficiency of micro jets to manage the base pressure in rapidly expanded axi-symmetric duct. Four tiny jets of 1mm orifice diameter located at 90 intervals along a pitch circle diameter of 1.3 times the nozzle ...
Khan, Sher Afghan
core  

A Grey Correlation Model for Analyzing Ultimate Bearing Capacity of Large Diameter and Super-Long Pile

, 2011
Large diameter and super-long pile has found abroad application in high buildings, super high buildings, large bridges and port engineering, and its ultimate bearing capacity is increasingly demanding.
Ai Ping Tang, Jie Wen Tu
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Pentamodes: Effect of unit cell topology on mechanical properties

Results in Engineering
Pentamodes (first conceived theoretically by Milton and Cherkaev) are a very interesting class of mechanical metamaterials that can be used as building blocks of structures withdecoupled bulk and shear moduli.
Kaivan Mohammadi, Moein Shafia, Javad Akbari, Reza Hedayati   +3 more
doaj   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Research on fuel injection characteristics of common rail system based on high pressure pipeline integration and matching

Energy Science & Engineering
The modular prediction model of high pressure common rail system was established to study the influence of high‐pressure pipeline integration matching on the fuel injection characteristics of common rail system.
Rui‐fan Xu, Fu‐kang Ma, Liang‐yu Li, Wei Yang, Yi Zhang   +4 more
doaj   +1 more source

Deep Hole Drilling of Large-Diameter Titanium Alloy With a Novel Rotary Low-Frequency Vibration Device

IEEE Access, 2019
Titanium alloy (Ti) has been widely used in aerospace industry due to excellent mechanical properties and the demands of Ti parts with a high length-to-diameter ratio and a large diameter are increasing.
Zhenyu Shao, Xinggang Jiang, Daxi Geng, Ye Yang, Zhenlong Peng, Shaomin Li, Deyuan Zhang   +6 more
doaj   +1 more source

Solid plant fraction (SPF), vertical wave velocity attenuation (α_w), ratio between the orbital excursion length (A_∞) and the plant-to-plant distance (d), ratio between the plant-to-plant distance (S) and the stem diameter (d) and vegetation type (flexible or rigid).

, 2018
Solid plant fraction (SPF), vertical wave velocity attenuation (αw), ratio between the orbital excursion length (A∞) and the plant-to-plant distance (d), ratio between the plant-to-plant distance (S) and the stem diameter (d) and vegetation type ...
Teresa Serra (3167262), Carolyn Oldham (2271661), Jordi Colomer (3167271)   +2 more
core   +1 more source

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

Advanced Engineering Materials, EarlyView.
This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz, Jannik Krohn, Alexander Leichner, Dilip Chalissery, Heiko Andrae, Chris Eberl   +5 more
wiley   +1 more source