Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Royer, Daniel"'
Elastic waves guided along bars of rectangular cross section exhibit complex dispersion. This paper studies in-plane modes propagating at low frequencies in thin isotropic rectangular waveguides through experiments and numerical simulations. These mo
Externí odkaz:
http://arxiv.org/abs/1907.09813
Publikováno v:
J. Acoust. Soc. Am. 140, 2829 (2016)
Optimization of Lamb modes induced by laser can be achieved by adjusting the spatial source distribution to the mode wavelength ($\lambda$). The excitability of Zero-Group Velocity (ZGV) resonances in isotropic plates is investigated both theoretical
Externí odkaz:
http://arxiv.org/abs/1612.02665
Autor:
Mezil, Sylvain, Bruno, François, Raetz, Samuel, Laurent, Jérôme, Royer, Daniel, Prada, Claire
Zero-Group Velocity (ZGV) Lamb waves are studied in a structure composed of two plates bonded by an adhesive layer. The dispersion curves are calculated for a Duralumin/epoxy/Duralumin sample, where the adhesion is modeled by a normal and a tangentia
Externí odkaz:
http://arxiv.org/abs/1511.04367
The transient response of an elastic cylinder to a laser impact is studied. When the laser source is a line perpendicular to the cylinder axis, modes guided along the cylinder are generated. For a millimetric steel cylinder up to ten narrow resonance
Externí odkaz:
http://arxiv.org/abs/1503.01459
Publikováno v:
Appl. Phys. Lett. 105, 021605 (2014)
A non contact technique using Zero-Group Velocity (ZGV) Lamb modes is developed to probe the bonding between two solid plates coupled by a thin layer. The layer thickness is assumed to be negligible compared with the plate thickness and the acoustic
Externí odkaz:
http://arxiv.org/abs/1407.4988
This paper investigates the dependence on Poisson's ratio of local plate resonances in low attenuating materials. In our experiments, these resonances are generated by a pulse laser source and detected with a heterodyne interferometer measuring surfa
Externí odkaz:
http://arxiv.org/abs/1404.7464
Publikováno v:
Applied Physics Letters 104 (2014) 083504
We report on an experimental demonstration of surface acoustic waves monitoring on a thin metal plate with heterodyne optical holography. Narrowband imaging of local optical pathlength modulation is achieved with a frequency-tunable time-averaged las
Externí odkaz:
http://arxiv.org/abs/1401.5344
Autor:
Royer, Daniel, author
Publikováno v:
A Different Three Rs for Education: Reason, Relationality, Rhythm. :61-73