Author
L Mallet
Bio: L Mallet is an academic researcher. The author has contributed to research in topics: Lamb waves. The author has an hindex of 1, co-authored 1 publications receiving 277 citations.
Topics: Lamb waves
Papers
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TL;DR: In this article, a non-contact method for low-frequency Lamb wave sensing using a laser Doppler velocimeter is presented, and the results are validated using classical piezoceramic-based sensing and numerical simulations.
Abstract: Structural health monitoring using Lamb waves is based on guided waves introduced to a structure at one point and sensed at a different location. Actuation and sensing can be accomplished using various types of transducer. The paper demonstrates a non-contact method for low-frequency Lamb wave sensing. The technique utilizes a laser Doppler velocimeter. Lamb wave responses are enhanced using data smoothing and filtering procedures. The results are validated using classical piezoceramic-based sensing and numerical simulations. The study shows the potential of laser vibrometry for Lamb wave sensing.
301 citations
Cited by
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TL;DR: In this paper, the authors provide a state-of-the-art review of guided wave based structural health monitoring (SHM) and highlight the future directions and open areas of research in guided wave-based SHM.
Abstract: The paper provides a state of the art review of guided wave based structural health monitoring (SHM). First, the fundamental concepts of guided wave propagation and its implementation for SHM is explained. Following sections present the different modeling schemes adopted, developments in the area of transducers for generation, and sensing of wave, signal processing and imaging technique, statistical and machine learning schemes for feature extraction. Next, a section is presented on the recent advancements in nonlinear guided wave for SHM. This is followed by section on Rayleigh and SH waves. Next is a section on real-life implementation of guided wave for industrial problems. The paper, though briefly talks about the early development for completeness,. is primarily focussed on the recent progress made in the last decade. The paper ends by discussing and highlighting the future directions and open areas of research in guided wave based SHM.
664 citations
TL;DR: In this article, the area of structural bonded repair of composites is broadly reviewed, starting from damage assessment to automation, to identify current scientific challenges and future opportunities, and the authors propose a robust, reliable and repeatable structural bond repair procedures to restore damaged composite components.
388 citations
TL;DR: In this paper, an active and passive approach for impact damage detection in composite materials is presented, where the active approach is usually based on various non-destructive techniques utilizing actuators and/or receivers, while the passive approach does not involve any actuators; receivers are used to sense and or hear any perturbations caused by possible hidden damage.
364 citations
TL;DR: The state‐of‐the‐art methods have been presented by conducting a detailed literature review of the recent applications of smartphones, UAVs, cameras, and robotic sensors used in acquiring and analyzing the vibration data for structural condition monitoring and maintenance.
301 citations
TL;DR: After reviewing various techniques the paper concludes which source localization technique should be most effective for what type of structure and what the current research needs are.
250 citations