Abstract
Delamination caused by low-velocity strike is considered as one of the most dangerous failure types. The destruction of contact between the plies or composite components significantly lowers the residual strength of the material but cannot be determined by visual inspection. These failures can mostly be determined by ultrasound testing, however, it requires a long time and cannot be carried out on site, which increases the maintenance cost. Both delamination emergence and ultrasound diagnostic results are determined by wave processes in viscoelastic media. The grid-characteristic method used in this chapter shows good results verified on various experimental data. The results of numerical modelling of delamination and its diagnostics are given in this chapter.
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Acknowledgements
The reported study was funded by the Russian Fund for Basic Researches according to the research project № 16-07-00884 A.
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Beklemysheva, K.A., Vasyukov, A.V., Kazakov, A.O., Ermakov, A.S. (2018). Numerical Modelling of Composite Delamination and Non-destructive Testing. In: Favorskaya, A., Petrov, I. (eds) Innovations in Wave Processes Modelling and Decision Making. Smart Innovation, Systems and Technologies, vol 90. Springer, Cham. https://doi.org/10.1007/978-3-319-76201-2_6
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DOI: https://doi.org/10.1007/978-3-319-76201-2_6
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