TY - GEN
T1 - Sensor fusion and damage classification in composite materials
AU - Zhou, Wenfan
AU - Reynolds, Whitney D.
AU - Moncada, Albert
AU - Kovvali, Narayan
AU - Chattopadhyay, Aditi
AU - Papandreou-Suppappola, Antonia
AU - Cochran, Douglas
PY - 2008
Y1 - 2008
N2 - We describe a statistical method for the classification of damage in complex structures. Our approach is based on a Bayesian framework using hidden Markov models (HMMs) to model time-frequency features extracted from structural data. We also propose two different methods for sensor fusion to combine information from multiple distributed sensors such that the overall classification performance is increased. The proposed approaches are applied to the classification and localization of delamination in a laminated composite plate. Results using both discrete and continuous observation density HMMs, together with the sensor fusion, are presented and discussed.
AB - We describe a statistical method for the classification of damage in complex structures. Our approach is based on a Bayesian framework using hidden Markov models (HMMs) to model time-frequency features extracted from structural data. We also propose two different methods for sensor fusion to combine information from multiple distributed sensors such that the overall classification performance is increased. The proposed approaches are applied to the classification and localization of delamination in a laminated composite plate. Results using both discrete and continuous observation density HMMs, together with the sensor fusion, are presented and discussed.
KW - Damage detection and classification
KW - Hidden Markov models
KW - Sensor fusion
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=44449133242&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44449133242&partnerID=8YFLogxK
U2 - 10.1117/12.776608
DO - 10.1117/12.776608
M3 - Conference contribution
AN - SCOPUS:44449133242
SN - 9780819471123
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Modeling, Signal Processing, and Control for Smart Structures 2008
T2 - Modeling, Signal Processing, and Control for Smart Structures 2008
Y2 - 10 March 2008 through 12 March 2008
ER -