Results 31 to 40 of about 1,363,288 (257)

High-temperature high-sensitivity AlN-on-SOI Lamb wave resonant strain sensor

AIP Advances, 2018
A piezoelectric AlN-on-SOI structured MEMS Lamb wave resonator (LWR) is presented for high-temperature strain measurement. The LWR has a composite membrane of a 1 μm thick AlN film and a 30 μm thick device silicon layer.
Shaoxu Dou, Mengke Qi, Cong Chen, Hong Zhou, Yong Wang, Zhengguo Shang, Jing Yang, Dengpan Wang, Xiaojing Mu   +8 more
doaj   +1 more source

A comparative analysis of seismic response of shallow buried underground structure under incident P, SV and Rayleigh waves

Earthquake Research Advances, 2022
In this study, A time-domain seismic response analysis method and a calculation model of the underground structure that can realize the input of seismic P, SV and Rayleigh waves are established, based on the viscoelastic artificial boundary elements and ...
Xin Bao, Jingbo Liu, Hui Tan, Shutao Li, Fei Wang   +4 more
doaj   +1 more source

Study of high-resolution analysis of Rayleigh waves on the basis of the Choi–Williams distribution

Frontiers in Earth Science
Rayleigh wave exploration is widely used in the field of engineering investigation, which can analyze the near surface velocity structure. However, the traditional Rayleigh wave exploration data processing method can only provide the average change of ...
Min Xiang, Min Xiang, Xuhui Zhang, Xuhui Zhang, Yuxuan Wei, Xiaoyong Yao, Xiaoyong Yao   +6 more
doaj   +1 more source

Disturbances of surface wave field due to wave scattering at shallow cavities

Yantu gongcheng xuebao, 2018
In homogenous half spaces, the wave fields at shallow depth are dominated by Rayleigh waves activated by the surface sources. When the forward Rayleigh waves encounter a shallow cavity, the displacement shapes and the particle orbit are changed. Rayleigh
CHAI Hua-you 1, KE Wen-hui 2, 3, CHEN Elton J 4, HUANG Xiang-guo 2, LI Zhong-chao 2
doaj   +1 more source

The axisymmetric Rayleigh waves in a semi-infinite elastic solid

Theoretical and Applied Mechanics Letters, 2020
: It is well-known that Rayleigh wave, also known as surface acoustic wave (SAW), solutions in semi-infinite solids are plane waves with signatory properties like the distinct velocity and exponentially decaying deformation in the depth.
Ji Wang, Shaoyun Wang, Longtao Xie, Yangyang Zhang, Lili Yuan, Jianke Du, Han Zhang   +6 more
doaj   +1 more source

Viscoelastic Rayleigh waves [PDF]

Quarterly of Applied Mathematics, 1977
A general analysis is given of the propagation of surface waves over a half-space of homogeneous isotropic linearly-viscoelastic material. Particular emphasis is placed on the properties of the particle paths. The detailed examination of particular models shows that (in contrast with elastic materials) (i) more than one surface wave may be possible ...
Currie, P. K., Hayes, M. A., O'Leary, P. M.   +2 more
openaire   +2 more sources

Thermomagnetic effect on the propagation of Rayleigh waves in an isotropic homogeneous elastic half-space under initial stress

Cogent Engineering, 2015
Rayleigh wave propagation in an isotropic homogeneous initially stressed thermoelastic half-space under the effect of magnetic field has been studied using Green–Lindsay (GL) theory of generalized thermoelasticity.
Rajeev Ghatuary, Nilratan Chakraborty
doaj   +1 more source

Resonance Expansions and Rayleigh Waves [PDF]

Mathematical Research Letters, 2001
The author studies expansions of solutions of the wave equation in a compact set with initial data supported in the same set. He considers the general framework of the ``black box scattering'' introduced by Sjöstrand and Zworski. In particular, this includes the classical case of scattering by obstacle with Dirichlet or Neumann boundary conditions and ...
openaire   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

“Forbidden” planes for Rayleigh waves [PDF]

Quarterly of Applied Mathematics, 2002
Summary: We discuss the existence of ``forbidden'' planes, on which Rayleigh waves cannot propagate. A mathematical model for anisotropic materials possessing ``forbidden'' planes is constructed, and an example of transversely isotropic material having ``forbidden'' planes is presented.
openaire   +2 more sources