TY - GEN
T1 - Locating defects using dynamic strain analysis and artificial neural networks
AU - Hernandez-Gomez, L. H.
AU - Durodola, J. F.
AU - Fellows, N. A.
AU - Urriolagoitia-Calderón, G.
PY - 2005
Y1 - 2005
N2 - An inverse artificial neural network (ANN) assessment for locating defects in bars with or without notches is presented in the paper. Postulated void defects of 1mm × 1mm were introduced into bars that were impacted with an impulse step load; the resultant elastic waves propagate impinging on the defects. The resultant transient strain field was analyzed using the finite element method. Transient strain data was collected at nodal points or sensors locations on the boundary of the bars and used to train and assess ANNs. The paper demonstrates quantitatively, the effects of features such as the design of ANN, sensing parameters such as number of data collection points, and the effect of geometric features such as notches in the bars.
AB - An inverse artificial neural network (ANN) assessment for locating defects in bars with or without notches is presented in the paper. Postulated void defects of 1mm × 1mm were introduced into bars that were impacted with an impulse step load; the resultant elastic waves propagate impinging on the defects. The resultant transient strain field was analyzed using the finite element method. Transient strain data was collected at nodal points or sensors locations on the boundary of the bars and used to train and assess ANNs. The paper demonstrates quantitatively, the effects of features such as the design of ANN, sensing parameters such as number of data collection points, and the effect of geometric features such as notches in the bars.
KW - Back propagation
KW - Dynamic strains
KW - Inverse computing analysis
KW - Location of defects
KW - Neural networks
UR - http://www.scopus.com/inward/record.url?scp=33745178881&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.3-4.325
DO - 10.4028/www.scientific.net/AMM.3-4.325
M3 - Contribución a la conferencia
SN - 0878499873
SN - 9780878499878
T3 - Applied Mechanics and Materials
SP - 325
EP - 330
BT - Advances in Experimental Mechanics IV - Proceedings of the 4th International Conference on Advances in Experimental Mechanics
PB - Trans Tech Publications Ltd
T2 - 4th International Conference on Advances in Experimental Mechanics
Y2 - 6 September 2005 through 8 September 2005
ER -