Behaviour of circumferential and helical guided waves in two-layered composite cylindrical shell

E Oukhai, S Agounad, B Faiz - Applied Mathematical Modelling, 2024 - Elsevier
A model of the acoustic scattering of a plane wave incident obliquely upon an infinite elastic
bi-layered cylindrical shell is developed based on normal mode expansion technique. The …

Dispersion in bilaminated cylindrical shells: Incidence angle and thickness impacts

E Oukhai, S Agounad - International Journal of Mechanical Sciences, 2024 - Elsevier
Under oblique incidence acoustic wave, we investigate theoretically and numerically the
dispersion curves of bilaminated cylindrical shell which composed of copper and stainless …

A methodology for evaluating damage in thin-walled cylindrical shells using bounded ultrasonic beam scattering

J Cai, M Deng - Thin-Walled Structures, 2024 - Elsevier
This paper introduces an ultrasonic detection methodology specifically designed to assess
damage in thin-walled cylindrical shells, which crucially relies on the interaction between a …

Analysis of acoustic radiation problems involving arbitrary immersed media interfaces by the extended finite element method with Dirichlet to Neumann boundary …

H Ma, A Tian, G Sui, Q Li, Y Zhang - Engineering Analysis with Boundary …, 2024 - Elsevier
To quantify the influence of moving immersed media on acoustic radiation, this study
develops an efficient method for acoustic radiation with arbitrary immersed media interfaces …

Analysis of two-dimensional stochastic acoustic radiation problems with immersed media interface uncertainties

H Ma, G Sui, A Tian, Y Kong, M Xia - Physics of Fluids, 2024 - pubs.aip.org
Unlike uncertainties stemming from loads and material properties, interface uncertainties
arising from variations in immersed media within the acoustic field can significantly alter the …

[HTML][HTML] Experimental Study of Omnidirectional Scattering Characteristics of Complex Scale Targets Based on Coded Signals

Y Tang, Q Zhou, Y Pan, X Lü, X Wang - Journal of Marine Science and …, 2024 - mdpi.com
To investigate the omnidirectional geometric scattering characteristics of an underwater
vehicle and the target detection performance of phase coded (BPSK) signals, acoustic …

Characterization of bilaminated cylindrical shell under oblique excitation: Effects of fluid filled cavity on resonances

E Oukhai, S Agounad - 2024 International Conference on …, 2024 - ieeexplore.ieee.org
Exploring acoustic scattering in a bilaminated cylindrical shell under oblique excitation aims
to scrutinize the influence of fluids within the cavity on resonance phenomena. The analysis …

Ultrasonic velocity measurements of backscattered acoustic waves for monitoring the enzymatic coagulation of milk

N Jaafari, A Amghar, H Banouni… - Engineering …, 2024 - iopscience.iop.org
In this work, the milk coagulation process was monitored by a nondestructive ultrasonic
technique. Three analysis methods were used to calculate ultrasonic wave velocity and …

[PDF][PDF] Estudio de nanopartículas de óxido de hierro incorporadas en una matriz MCM-41, para su potencial aplicación en dispositivos

GM Bravo de Luciano, B De Luciano, G Miguel - 2024 - repositorioinstitucional.buap.mx
Este trabajo se presenta una ruta de síntesis verde para nanopartículas de óxido de hierro
(IONPs) utilizando extracto de Baccharis salicifolia como agente reductor, dando lugar a …

[引用][C] 基于有限数据的水下球类目标多基地低频散射声场预报方法(网络首发)

陈昌雄, 彭子龙, 宋昊, 薛亚强, 周富霖 - 上海交通大学学报