Results 21 to 30 of about 100,607 (267)

Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling

The Journal of Engineering Research, 2013
This paper discusses the development of semi-empirical relations for the maximum stress concentration factor (SCF) around circular holes embedded in aluminum tubes under various expansion ratios and mandrel angles. Finite element models were developed to
L Mhamdi, AC Seibi, A Karrech, S El-Borgi, I Barsoum   +4 more
doaj   +1 more source

Behavior of Aluminum Columns Enhanced with CFRP and Filled by Lightweight Concrete [PDF]

Engineering and Technology Journal, 2014
An experimental study of composite columns of hollow circular aluminum tubes enhanced with a fibers reinforced polymer (FRP) sheet and filled by lightweight concrete are presented in this paper.
ad Fahad Resan
doaj   +1 more source

Coronal Field Geometry and Solar Wind Speed

Universe, 2022
The Wang–Sheeley–Arge (WSA) solar wind (SW) model is based on the idea that weakly expanding coronal magnetic field tubes are associated with sources of fast SWs and vice versa.
Ivan Berezin, Andrey Tlatov
doaj   +1 more source

Flow behavior and thermal separation mechanism on vortex tube

Journal of Thermal Engineering, 2021
Flow behaviour and thermal separation mechanism on vortex tubes have been studied numer-ically. Rapid expansion indicated by high-pressure gradient near the inlet and the exit ports contributes to energy separation on the parallel and the counter flow ...
Dedy NOOR, Heru MIRMANTO, Joko SARSETIYANTO, Denny SOEDJONO   +3 more
doaj   +1 more source

Mechanical behavior and energy absorption of expansion circular tube with negative Poisson’s ratio

Alexandria Engineering Journal
The expansion tube plays a crucial role in the field of train collision safety protection. In this study, we combine the expansion characteristics of negative Poisson’s ratio (NPR) with the deformation mechanism of the expansion tube to propose a novel ...
Ruixian Qin, Xiwei Liu, Xi Wang, Hongzhe Niu, Qijian Li, Xu Zhang, Bingzhi Chen   +6 more
doaj   +1 more source

Experimental Study on Bearing Capacity of Compression Members of Space Grid Structures Reinforced by RPC

Applied Sciences, 2022
Insufficient bearing capacity of compression bars in space grid structures can significantly reduce the collapse resistance of structures and cause immeasurable losses.
Yutong Duan, Honggang Lei, Yan Zhou, Shihong Jin   +3 more
doaj   +1 more source

A new model for the expansion tube considering the stress coupling: Theory, experiments and simulations

Defence Technology, 2022
Based on the two-arc profile assumption, the expansion deformation and energy absorption of circular tubes compressed by conical-cylindrical dies were reconsidered.
M.Z. Wu, X.W. Zhang, Q.M. Zhang
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Experimental and Numerical Study on Plastic Behavior of Expansion Tubes Subjected to Impact

Applied Sciences
Aiming to study the plastic behavior of expansion tubes, this paper presents experimental studies on Q420 and S2205 steel tubes and investigates the influence of key parameters on the responses of the expansion tube. A finite element model is established
Di Jiang, Yiqun Yu, Lihua Wu, Xvdong Zhi, Haiqing Li, Feng Fan, Rong Zhang   +6 more
doaj   +1 more source

Investigation of droplet nucleation in CCS relevant systems – Design and testing of a CO2 branch of the mixture preparation device

EPJ Web of Conferences, 2017
A unique in-house designed experimental apparatus for investigation of nucleation of droplets in CCS relevant systems is being developed by our team. The nucleation is measured with the help of a rapid pressure drop within an expansion chamber.
Vinš Václav, Čenský Miroslav, Hykl Jiří, Hrubý Jan   +3 more
doaj   +1 more source