Crack Damage Assessment Based on Gaussian Process Model
2014 ◽
Vol 487
◽
pp. 247-254
Keyword(s):
Gp Model
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The material dispersion of structure led to a lager error in crack length evaluating, the assessment method utilizing Gaussian Process (GP) model was proposed to solve the problem. The fatigue crack was monitored by active Lamb monitoring technology, and the four damage indices were extracted from the measured sensor signal, and then inputted to the GP model to realize the online evaluating of crack length. The fatigue test of hole-edge crack was made in LY12-CZ Aluminum specimen, which was used in aerospace structures frequently, the results shows that the method could efficiently decrease the evaluation error of crack length, which caused by material dispersion of structure.
Keyword(s):
2021 ◽
Keyword(s):
2013 ◽
Vol 2013
◽
pp. 1-11
◽
2012 ◽
Vol 132
(12)
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pp. 1966-1972
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2018 ◽