Abstract
A method for deriving hexahedral finite elements with lumped mass matrices for 3-D-problems is presented. These elements meet the theoretical conditions for high order convergence, and two numerical examples based on the 3-D scalar wave equation show that this is also the case in practice and that their accuracy is comparable to elements with consistent mass matrices.
Original language | English |
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Journal | International Journal for Numerical Methods in Engineering |
Volume | 39 |
Issue number | 11 |
Pages (from-to) | 1879-1888 |
ISSN | 0029-5981 |
DOIs | |
Publication status | Published - 1996 |