Uncertainties in structural dynamics for composite sandwich panels
Chen, C. ; Duhamel, Denis ; Soize, Christian
HAL, hal-00686190 / Harvested from HAL
Text on HAL
This paper concerns uncertainties in structural dynamics for composite sandwich panels constituted of two thin carbon-resin skins and one high stiffness closed-cell foam core. Each skin is constituted of two unidirectional plies [60/-60]. Such light composite sandwich panels, manufactured with a same process, generally present a significant dispersion for their Frequency Response Functions (FRF) in the Low-Frequency (LF) and Medium-Frequency (MF) ranges. The objectives of this paper are (1) to study the dispersion due to the process by using experiments (2) to develop a predictive mean mechanical model based on the use of the laminated composite thin plate theory in dynamics and (3) to use a nonparametric probabilistic approach for data and model uncertainties to improve the predictability of the mean model in the MF dynamics.
Publié le : 2004-09-20
Classification:  uncertainty quantification,  structural dynamics,  composite sandwich panels,  nonparametric probabilistic method,  model uncertainties,  modeleing errors,  random vibrations,  [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph],  [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph],  [MATH.MATH-PR]Mathematics [math]/Probability [math.PR],  [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST],  [STAT.TH]Statistics [stat]/Statistics Theory [stat.TH],  [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph],  [PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Mechanics of the structures [physics.class-ph] 
@article{hal-00686190,
     author = {Chen, C. and Duhamel, Denis and Soize, Christian},
     title = {Uncertainties in structural dynamics for composite sandwich panels},
     journal = {HAL},
     volume = {2004},
     number = {0},
     year = {2004},
     language = {en},
     url = {http://dml.mathdoc.fr/item/hal-00686190}
}

Chen, C.; Duhamel, Denis; Soize, Christian. Uncertainties in structural dynamics for composite sandwich panels. HAL, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/hal-00686190/