TY - GEN
T1 - Development of guided wave ultrasonic inspection method for thick composite structures
AU - Saikrishna, U.
AU - Srinivas, K.
AU - Prasad, Y. L.V.D.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Ultrasonic Non-destructive testing is a well known technique for inspecting fiber reinforced composite structures however; its capability is severely limited by the high attenuation in thick and multi layer structures. Guided wave ultrasonic inspection has been reported to be useful tool for quantitative identification of composite structures. It takes advantage of tailoring/generating desired ultrasonic wave modes (Symmetric and anti-symmetric) for improved transmission through the composite structure. For this, guided waves have to be generated selectively by precisely placing transducer at an angle to the test surface. Automation of two axis fixture for transmission and reception of transducers have to be used for avoiding manual errors. The captured signals have to be processed in order to extract useful information from the received ultrasonic signals. The proposed project aims at developing automated guided wave inspection methods along with digital signal processing for generating dispersion curves for thick composited. Using test laminates with implanted defects, methodology for thick composite inspection with guided wave ultrasonic's will be established. For this data will be captured and analyzed using Labview software.
AB - Ultrasonic Non-destructive testing is a well known technique for inspecting fiber reinforced composite structures however; its capability is severely limited by the high attenuation in thick and multi layer structures. Guided wave ultrasonic inspection has been reported to be useful tool for quantitative identification of composite structures. It takes advantage of tailoring/generating desired ultrasonic wave modes (Symmetric and anti-symmetric) for improved transmission through the composite structure. For this, guided waves have to be generated selectively by precisely placing transducer at an angle to the test surface. Automation of two axis fixture for transmission and reception of transducers have to be used for avoiding manual errors. The captured signals have to be processed in order to extract useful information from the received ultrasonic signals. The proposed project aims at developing automated guided wave inspection methods along with digital signal processing for generating dispersion curves for thick composited. Using test laminates with implanted defects, methodology for thick composite inspection with guided wave ultrasonic's will be established. For this data will be captured and analyzed using Labview software.
UR - http://www.scopus.com/inward/record.url?scp=84905032118&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/AMM.592-594.153
DO - 10.4028/www.scientific.net/AMM.592-594.153
M3 - Conference contribution
AN - SCOPUS:84905032118
SN - 9783038351634
T3 - Applied Mechanics and Materials
SP - 153
EP - 157
BT - Dynamics of Machines and Mechanisms, Industrial Research
PB - Trans Tech Publications Ltd
T2 - 2014 International Mechanical Engineering Congress, IMEC 2014
Y2 - 13 June 2014 through 15 June 2014
ER -