Download Low Velocity Impacts and Damage Identification with Lamb Waves
Download Low Velocity Impacts and Damage Identification with Lamb Waves
Low Velocity Impacts and Damage Identification with Lamb Waves.cTancredi Simone
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Author: Tancredi Simone
Number of Pages: 92 pages
Published Date: 07 Mar 2015
Publisher: LAP Lambert Academic Publishing
Publication Country: United States
Language: English
ISBN: 9783659385889
Download Link: Low Velocity Impacts and Damage Identification with Lamb Waves
---------------------------------------------------------------
In this work an efficient thus computationally low cost FEM modeling technique of both low velocity impacts and Lamb waves propagation events, involving Piezoelectric Wafer Active Sensors (PWAS), is presented. In Chapter 1 both the excitation and sensing of Lamb waves are investigated. The PWAS modeling techniques gave excellent results, as clear from the comparisons with the experimental curves. The great advantage of this modeling is represented by the low computational cost. In Chapter 2 the outputs from PWAS, during low velocity impact events, are investigated. The experimental curves registered during impacts on both aluminum and composite plates were compared with the FEM ones, obtained by considering only geometrical variables of the sensors. In Chapter 3 a test case for damage detection in thin plates with Lamb waves is presented, thus proving the advantage of the PWAS modeling technique for SHM purposes. The substantial improvement of a fast FEM solution is the possibility to directly visualize and study the interaction of Lamb waves with the various kinds of defects/damage eventually present in thin structures such as holes, cracks, delaminations, debondings, etc.
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Low Velocity Impacts and Damage Identification with Lamb Waves.cTancredi Simone
Author: Tancredi Simone
Number of Pages: 92 pages
Published Date: 07 Mar 2015
Publisher: LAP Lambert Academic Publishing
Publication Country: United States
Language: English
ISBN: 9783659385889
Download Link: Low Velocity Impacts and Damage Identification with Lamb Waves
---------------------------------------------------------------
In this work an efficient thus computationally low cost FEM modeling technique of both low velocity impacts and Lamb waves propagation events, involving Piezoelectric Wafer Active Sensors (PWAS), is presented. In Chapter 1 both the excitation and sensing of Lamb waves are investigated. The PWAS modeling techniques gave excellent results, as clear from the comparisons with the experimental curves. The great advantage of this modeling is represented by the low computational cost. In Chapter 2 the outputs from PWAS, during low velocity impact events, are investigated. The experimental curves registered during impacts on both aluminum and composite plates were compared with the FEM ones, obtained by considering only geometrical variables of the sensors. In Chapter 3 a test case for damage detection in thin plates with Lamb waves is presented, thus proving the advantage of the PWAS modeling technique for SHM purposes. The substantial improvement of a fast FEM solution is the possibility to directly visualize and study the interaction of Lamb waves with the various kinds of defects/damage eventually present in thin structures such as holes, cracks, delaminations, debondings, etc.
Read online Low Velocity Impacts and Damage Identification with Lamb Waves Buy Low Velocity Impacts and Damage Identification with Lamb Waves Download and read Low Velocity Impacts and Damage Identification with Lamb Waves for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Low Velocity Impacts and Damage Identification with Lamb Waves
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