Scattering from a finite ribbed plate with attached oscillators

Autor: Charles Croënne, Anne-Christine Hladky, Fernand Léon, Farid Chati, Mai Pham Thi, Dominique Décultot, Raphael Lardat, Michel Tran-Van-Nhieu, Laurent Divay, Gérard Maze, Bertrand Dubus

Publikováno v: Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2018, 144 (2), pp.785-795. ⟨10.1121/1.5049933⟩
Journal of the Acoustical Society of America, 2018, 144 (2), pp.785-795. ⟨10.1121/1.5049933⟩

Double layer structures consisting of stainless steel and polymer rods are designed to blur and attenuate Bragg and Bloch-Floquet scattering from a periodically ribbed plate in a given frequency bandwidth. These structures can be considered as ribbed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb693062fecbcef6040651b5ffd98921
https://doi.org/10.1121/1.5049933

Monitoring early age behavior of mortar by ultrasound technique for environmental issues: Effects of sand grading and salinity of mixing water

Autor: El Mostapha Lotfi, Nabil Khatib, Hicham Banouni, El Houssaine Ouacha, Mehdi Ousbih, Dominique Décultot, Mohamed El Habib Hitar, B. Faiz

Publikováno v: Construction and Building Materials. 306:124852

This paper aims to study the effects of different sand grading and salinity of mixing water on setting and hardening of cement mortar. For this purpose, a newly developed measurement method based on ultrasound pulse echo technique was used. Using thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f96245ca3b390f7c946a1f54f4db6b33
https://doi.org/10.1016/j.conbuildmat.2021.124852

Characterization and prediction of the backscattered form function of an immersed cylindrical shell using hybrid fuzzy clustering and bio-inspired algorithms

Autor: Younes Khandouch, Said Agounad, Dominique Décultot, El Houcein Aassif, Gérard Maze

Publikováno v: Ultrasonics
Ultrasonics, Elsevier, 2018, 83, pp.222-235. ⟨10.1016/j.ultras.2017.06.015⟩

The acoustic scattering of a plane wave by an elastic cylindrical shell is studied. A new approach is developed to predict the form function of an immersed cylindrical shell of the radius ratio b/a (‘b’ is the inner radius and ‘a’ is the oute

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::328398e278d592a756047c91700359f7
https://hal-normandie-univ.archives-ouvertes.fr/hal-01928214

Acoustic scattering from immersed composite cylindrical shells: Existence of zero group velocity circumferential waves

Autor: Said Agounad, El Houcein Aassif, Younes Khandouch, Dominique Décultot, Abdelkader Elhanaoui, Gérard Maze

Publikováno v: Composite Structures
Composite Structures, Elsevier, 2017, 182, pp.12-24. ⟨10.1016/j.compstruct.2017.08.093⟩

Some Lamb waves in a plate and some circumferential waves in a one-layer cylinder are characterized by the resonance frequencies where the group velocity is vanishing while the phase velocity remains finite. This paper investigates on the existence o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56acc829b3689d652e1e2bd07cb65b1c
https://hal-normandie-univ.archives-ouvertes.fr/hal-01919425

Comparison of laminate stiffness as measured by three experimental methods

Autor: Farid Chati, Aleksander Klauson, Dominique Décultot, Kaspar Lasn, Andreas T. Echtermeyer

Publikováno v: Polymer Testing
Polymer Testing, Elsevier, 2015, 44, pp.143-152. ⟨10.1016/j.polymertesting.2015.04.006⟩

Three independent stiffness measurement techniques are applied to characterize virgin glass fiber laminates. Natural frequency based measurements of laminate stiffness are compared to results from simple quasi-static testing and Lamb wave dispersion

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae165eb5f82764163d9e3565b1feb74
https://hal-normandie-univ.archives-ouvertes.fr/hal-01938758