TY - CONF A1 - Unger, Jörg F. ED - Idelsohn, S. ED - Sonzogni, V. ED - Coutinho, A. ED - Cruchaga, M. ED - Lew, A. ED - Cerrolaza, M. T1 - Numerical simulation of ultrasonic wave propagation using higher order methods in space and time T2 - Proceedings of the 1st Pan-American Congress on Computational Mechanics and XI Argentine Congress on Computational Mechanics N2 - The paper discusses the efficient simulation of ultrasonic wave propagation. It is demonstrated that a combination of higher methods in space and time leads to a significant performance boost. Higher order spectral elements are used for the spatial discretization. A comparison with standard finite elements shows the advantages when using explicit time integration schemes. For the temporal discretization, an efficient explicit fourth order Nyström method is presented. Its computational efficiency for wave propagation problems is compared to a second order Velocity Verlet integration. T2 - 1st Pan-American Congress on Computational Mechanics - PANACM 2015 CY - Buenos Aires, Argentina DA - 27.04.2015 KW - Elastic wave propagation KW - Spectral element method KW - Nyström methods PY - 2015 SN - 978-84-943928-2-5 SP - 1041 EP - 1052 PB - International Center for Numerical Methods in Engineering (CIMNE) CY - Barcelona, Spain AN - OPUS4-38645 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -