Advanced search
1 file | 7.60 MB

Numerical study of the time-of-flight pulsed ultrasonic polar scan for the determination of the full elasticity tensor of orthotropic plates

(2017) COMPOSITE STRUCTURES . 180. p.29-40
Author
Organization
Abstract
A novel approach is presented for the ultrasonic determination of the elastic constants in plate-like structures of an orthotropic material (e.g. composites) using a Time-of-Flight version of the Pulsed Ultrasonic Polar Scan (TOF P-UPS). A forward numerical model of the TOF P-UPS is coupled to an inversion algorithm, based on the genetic optimization principle, targeting the determination of the orthotropic elastic parameters, and the quality of the inversion is demonstrated for synthetic data representative for composites. The advantage of the new approach is that the presented TOF P-UPS inversion method does not require a priori knowledge about the symmetry class of the material, nor about the orientation of the main axes of symmetry. Furthermore, the TOF P-UPS inversion method yields an accurate characterization of the orthotropic elasticity tensor, even when applied to composite plates with small frequency-thickness ratios in which the traditional bulk wave approaches no longer hold. Finally, the robustness of the TOF P-UPS inversion method is demonstrated for noisy data by evaluating the results for a range of signal-to-noise ratios.
Keywords
Ultrasonic Polar Scan, Time-of-Flight, NDT, Characterization

Downloads

  • manuscript elasticity AM.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 7.60 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Martens, A, Mathias Kersemans, J Daemen, Erik Verboven, Wim Van Paepegem, Joris Degrieck, S Delrue, and K Van Den Abeele. 2017. “Numerical Study of the Time-of-flight Pulsed Ultrasonic Polar Scan for the Determination of the Full Elasticity Tensor of Orthotropic Plates.” Composite Structures  180: 29–40.
APA
Martens, A, Kersemans, M., Daemen, J., Verboven, E., Van Paepegem, W., Degrieck, J., Delrue, S., et al. (2017). Numerical study of the time-of-flight pulsed ultrasonic polar scan for the determination of the full elasticity tensor of orthotropic plates. COMPOSITE STRUCTURES  , 180, 29–40.
Vancouver
1.
Martens A, Kersemans M, Daemen J, Verboven E, Van Paepegem W, Degrieck J, et al. Numerical study of the time-of-flight pulsed ultrasonic polar scan for the determination of the full elasticity tensor of orthotropic plates. COMPOSITE STRUCTURES  . Elsevier BV; 2017;180:29–40.
MLA
Martens, A, Mathias Kersemans, J Daemen, et al. “Numerical Study of the Time-of-flight Pulsed Ultrasonic Polar Scan for the Determination of the Full Elasticity Tensor of Orthotropic Plates.” COMPOSITE STRUCTURES  180 (2017): 29–40. Print.
@article{8528850,
  abstract     = {A novel approach is presented for the ultrasonic determination of the elastic constants in plate-like structures of an orthotropic material (e.g. composites) using a Time-of-Flight version of the Pulsed Ultrasonic Polar Scan (TOF P-UPS). A forward numerical model of the TOF P-UPS is coupled to an inversion algorithm, based on the genetic optimization principle, targeting the determination of the orthotropic elastic parameters, and the quality of the inversion is demonstrated for synthetic data representative for composites. The advantage of the new approach is that the presented TOF P-UPS inversion method does not require a priori knowledge about the symmetry class of the material, nor about the orientation of the main axes of symmetry. Furthermore, the TOF P-UPS inversion method yields an accurate characterization of the orthotropic elasticity tensor, even when applied to composite plates with small frequency-thickness ratios in which the traditional bulk wave approaches no longer hold. Finally, the robustness of the TOF P-UPS inversion method is demonstrated for noisy data by evaluating the results for a range of signal-to-noise ratios.},
  author       = {Martens, A and Kersemans, Mathias and Daemen, J and Verboven, Erik and Van Paepegem, Wim and Degrieck, Joris and Delrue, S and Van Den Abeele, K},
  issn         = {0263-8223},
  journal      = {COMPOSITE STRUCTURES                                        },
  keyword      = {Ultrasonic Polar Scan,Time-of-Flight,NDT,Characterization},
  language     = {eng},
  pages        = {29--40},
  publisher    = {Elsevier BV},
  title        = {Numerical study of the time-of-flight pulsed ultrasonic polar scan for the determination of the full elasticity tensor of orthotropic plates},
  url          = {http://dx.doi.org/10.1016/j.compstruct.2017.07.083},
  volume       = {180},
  year         = {2017},
}

Altmetric
View in Altmetric