Disperse: A General Purpose Program for Creating Dispersion Curves. The application of guided waves in NDT can be hampered by the lack of readily available dispersion curves for complex structures. To overcome this hindrance, we have developed a general purpose program that can create dispersion curves for a very wide range of systems and then effectively communicate the information contained within those curves. The program uses the global matrix method to handle multi-layered Cartesian and cylindrical systems. The solution routines cover both leaky and non-leaky cases and remain robust for systems which are known to be difficult, such as large frequency-thicknesses and thin layers embedded in much thicker layers. Elastic and visco-elastic isotropic materials are fully supported; anisotropic materials are also covered, but are currently limited to the elastic, non-leaky, Cartesian case.

References in zbMATH (referenced in 13 articles )

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  1. Danny R. Ramasawmy, Ben T. Cox, Bradley E. Treeby: ElasticMatrix: A MATLAB toolbox for anisotropic elastic wave propagation in layered media (2020) not zbMATH
  2. Zhu, Feng; Wang, Bin; Qian, Zheng-hua: A numerical algorithm to solve multivariate transcendental equation sets in complex domain and its application in wave dispersion curve characterization (2019)
  3. Li, C. L.; Han, Q.; Liu, Y. J.: Thermoelastic wave characteristics in a hollow cylinder using the modified wave finite element method (2016)
  4. Treyss├Ęde, F.: Spectral element computation of high-frequency leaky modes in three-dimensional solid waveguides (2016)
  5. Sanderson, Ruth: A closed form solution method for rapid calculation of guided wave dispersion curves for pipes (2015)
  6. Fan, Zheng; Lowe, Mike J. S.: Elastic waves guided by a welded joint in a plate (2009)
  7. Shuvalov, A. L.; Poncelet, O.: On the backward Lamb waves near thickness resonances in anisotropic plates (2008)
  8. Shuvalov, A. L.; Poncelet, O.; Kiselev, A. P.: Shear horizontal waves in transversely inhomogeneous plates (2008)
  9. Botkin, N. D.; Hoffmann, K.-H.; Pykhteev, O. A.; Turova, V. L.: Dispersion relations for acoustic waves in heterogeneous multi-layered structures contacting with fluids (2007)
  10. Skelton, Elizabeth A.; Adams, Samuel D. M.; Craster, Richard V.: Guided elastic waves and perfectly matched layers (2007)
  11. Lowe, M. J. S.; Cawley, P.; Pavlakovic, B. N.: A general-purpose computer model for calculating elastic waveguide properties, with application to non-destructive testing (2004)
  12. Simonetti, Francesco; Cawley, Peter: On the nature of shear horizontal wave propagation in elastic plates coated with viscoelastic materials (2004)
  13. Gridin, D.; Craster, R. V.; Fong, J.; Lowe, M. J. S.; Beard, M.: The high-frequency asymptotic analysis of guided waves in a circular elastic annulus (2003)