TY - GEN
T1 - Diagnosis of spot welded structures using elastic wave transmission and reflection characteristics
AU - Kwak, Yunsang
AU - Park, Jeongwon
AU - Park, Junhong
PY - 2015
Y1 - 2015
N2 - An evaluation method for analyzing status of spot welded structures is proposed based on elastic wave transmission and reflection on beam structures. An elastic wave is generated and measured using piezoelectric excitation of a beam. For testing purposes, two beams are spot welded at evenly spaced locations, and several specimens were made using different currents and spot positions. For these beams the wave propagations are measured using identical piezoelectric actuation and sensing methods. Elastic wave propagations are analyzed using Timoshenko beam theory after taking the periodic constraints from the spot welding. The predicted propagation characteristics are compared to the measured ones for proposing diagnostic method. This provided non-destructing real-time monitoring of welded status.
AB - An evaluation method for analyzing status of spot welded structures is proposed based on elastic wave transmission and reflection on beam structures. An elastic wave is generated and measured using piezoelectric excitation of a beam. For testing purposes, two beams are spot welded at evenly spaced locations, and several specimens were made using different currents and spot positions. For these beams the wave propagations are measured using identical piezoelectric actuation and sensing methods. Elastic wave propagations are analyzed using Timoshenko beam theory after taking the periodic constraints from the spot welding. The predicted propagation characteristics are compared to the measured ones for proposing diagnostic method. This provided non-destructing real-time monitoring of welded status.
UR - https://www.scopus.com/pages/publications/84971353912
M3 - Conference contribution
AN - SCOPUS:84971353912
T3 - 22nd International Congress on Sound and Vibration, ICSV 2015
BT - 22nd International Congress on Sound and Vibration, ICSV 2015
PB - International Institute of Acoustics and Vibrations
T2 - 22nd International Congress on Sound and Vibration, ICSV 2015
Y2 - 12 July 2015 through 16 July 2015
ER -