Vectorization of the Code for Guided Wave Propagation Problems

Vectorization of the code for simulation of guided wave propagation problems based on the spectral element method is presented. In the code, flat shell spectral elements are utilized for spatial domain representation. The implementation is realised by using Matlab Parallel Computing Toolbox and optimized for Graphics Processing Unit (GPU) computation. In this way, considerable computation speed-up can be achieved in comparison to computation on conventional processors. The implementation includes an interpolation of wave-field on a uniform grid. The method was tested on experimental full wave-field data measured by scanning laser Doppler vibrometer. Good agreement between numerical and experimental results was achieved. Due to relatively short computation time, large data sets can be generated by using the proposed implementation. The large data sets are especially useful for deep neural network training or other soft computing methods opening up new possibilities in health monitoring of metallic and composite structures.