This dataset contains data for the figures published in: M. K. Kalkowski, E. Rustighi, T. P. Waters, ' Modelling piezoelectric excitation in waveguides using the semianalytical finite element method' published in Computers & Structures 2016. If using the data in any form, please cite them using the doi: 10.5258/SOTON/392801 (http://dx.doi.org/10.5258/SOTON/392801). Data for figures are gathered in ASCII text files (one per each figure). Data section of each file has a form of a comma-separated table. Headings with units and descriptions are also given (lines starting with '#'). Whenever presenting data in a single table was found inconvenient, respective data series are put one below another with a separator of the form '#------ ------'. Some files contain more data than presented in figures in the paper. If you would like to receive data in another format or have any queries regarding the data, please contact M.Kalkowski@soton.ac.uk. List of files in the ZIP-file: Figure7a.txt Figure7b.txt Figure9.txt Figure10.txt Figure11.txt Figure13.txt Figure14.txt Figure15a.txt Figure15b.txt Figure16.txt Figure17.txt