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Band gaps of acoustic waves propagating in a solid/liquid phononic fibonacci structure
(Elsevier, 2010-09-01)
Damage identification in bars with a wave propagation approach: performance comparison of five hybrid optimization methods
(2013)
The formulation and solution of the inverse problem of damage identification based on an one-dimensional wave propagation approach are presented in this paper. Time history responses, obtained from pulse-echo synthetic ...
Viscoelastic properties and efficient acoustic damping in confined polymer nano-layers at GHz frequencie
(Nature Publishing Group, 2016-09-16)
We investigate the viscoelastic properties of confined molecular nano-layers by time resolved optical pump-probe measurements. Access to the elastic properties is provided by the damping time of acoustic eigenmodes of thin ...
Elastic waves generated by impact and vibration in confined granular media
(arXiv, 2022)
Observational data of asteroids can be explained by considering them as an agglomerate of granular material. Understanding the mechanical properties of these objects is relevant for many scientific reasons: space missions ...
Computational Method to Determine Reflected Ultrasonic Signals From Arbitrary-Geometry Targets
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCEstados Unidos, 2010)
Reflection and transmission coefficients of a single layer in poroelastic media
(Acoustical Society of America Institute of Physics, 2014-03)
Wave propagation in poroelastic media is a subject that finds applications in many fields of research, from geophysics of the solid Earth to material science. In geophysics, seismic methods are based on the reflection and ...
Observações de ondas T sísmicas ao longo da costa no nordeste do Brasil
(Universidade Federal do Rio Grande do NorteBrasilUFRNGeofísica, 2021-07-01)
Moderate magnitude ≥ 4.0 Mw earthquakes, located on the edge of tectonic plates in the equatorial Atlantic Ocean, are commonly recorded by global seismographic stations. The seismic waves generated from these events are ...
Vibration Band Gaps For Elastic Metamaterial Rods Using Wave Finite Element Method
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTDLONDON, 2016)