Results 11 to 20 of about 2,905,814 (268)

Research on Delamination Damage Quantification Detection of CFRP Bending Plate Based on Lamb Wave Mode Control [PDF]

open access: yesSensors
The carbon-fiber-reinforced polymer (CFRP) bending structure is widely used in aviation. The emergence and spread of delamination damage will decrease the safety of in-service bending structures. Lamb waves can effectively identify delamination damage as
Quanpeng Yu   +3 more
doaj   +2 more sources

Transverse Spurious Mode Compensation for AlN Lamb Wave Resonators

open access: yesIEEE Access, 2019
Lamb wave modes with type I dispersion characteristics exhibit strong affinity toward multi transverse modes behavior above resonance frequency (fr) in the AlN Lamb wave resonators (LWRs), especially the high-transduction-efficiency modes: S0 and S1 mode.
Jie Zou, Jiansong Liu, Gongbin Tang
doaj   +2 more sources

Identification and Compensation Technique of Non-Uniform Temperature Field for Lamb Wave-and Multiple Sensors-Based Damage Detection

open access: yesSensors, 2019
Lamb wave-based damage detection for large-scale composites is one of the most prosperous structural health monitoring technologies for aircraft structures.
Hu Sun   +4 more
doaj   +2 more sources

Microcrack localization based on static component induced by a primary A0 Lamb wave in a thin plate [PDF]

open access: yesJASA Express Letters, 2022
A microcrack localization method based on a static component (SC) induced by a primary A0 Lamb wave is proposed. Based on the bilinear stress–strain constitutive model, a two-dimensional finite element model is built to investigate the interaction ...
Jishuo Wang   +3 more
doaj   +1 more source

Study of concrete de-bonding assessment technique for containment liner plates in nuclear power plants using ultrasonic guided wave approach

open access: yesNuclear Engineering and Technology, 2022
In this work, the guided wave de-bonding area-detecting technique was studied for application to containment liner plates in nuclear power plant areas.
Yonghee Lee, Hyunmin Yun, Younho Cho
doaj   +1 more source

Nonlinear Lamb Wave for Structural Incipient Defect Detection with Sequential Probabilistic Ratio Test

open access: yesSecurity and Communication Networks, 2022
The incipient defect is difficult to be identified by ultrasonic signal analysis. The nonlinear ultrasonic method based on the nonlinear Lamb wave principle is proposed by establishing a nonlinear Lamb wave ultrasonic inspection platform.
Hanxin Chen   +4 more
semanticscholar   +1 more source

An acoustic multi-touch sensing method using amplitude disturbed ultrasonic wave diffraction patterns [PDF]

open access: yes, 2010
This paper proposes an acoustic multi-touch tactile sensing method. The proposed method is based on an amplitude disturbed ultrasonic wave diffraction pattern.
HAFEZ, Moustapha   +4 more
core   +8 more sources

Mutual Interactions of Lamb Waves in Nonlinear Elastic Plates

open access: yesMetals, 2022
The mutual interactions of Lamb waves in nonlinear elastic plates are studied in this article. Many researchers have investigated the interactions of Lamb wave modes at nonlinear higher harmonics.
Shuyi Ma   +3 more
doaj   +1 more source

Leaky Lamb Wave Radiation from a Waveguide Plate with Finite Width

open access: yesApplied Sciences, 2020
In this paper, leaky Lamb wave radiation from a waveguide plate with finite width is investigated to gain a basic understanding of the radiation characteristics of the plate-type waveguide sensor.
Sang-Jin Park   +2 more
doaj   +1 more source

Lamb Waves Propagation Characteristics in Functionally Graded Sandwich Plates

open access: yesSensors, 2022
Functionally graded materials (FGM) have received extensive attention in recent years due to their excellent mechanical properties. In this research, the theoretical process of calculating the propagation characteristics of Lamb waves in FGM sandwich ...
Jie Gao   +4 more
doaj   +1 more source

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