Engineering Transactions, 36, 1, pp. 87-95, 1988

Tetrahedral Space-Time Elements in the Analysis of Forced Vibrations of Plates

J. Kotulecki
Technological University of Warsaw, Warszawa

M. Witkowski
Technological University of Warsaw, Warszawa

The paper presents a generalization of the space-time element method with a triangular net. Space-time is three-dimensional in dynamic analysis of plates, so instead of the triangular elements, tetrahedrons were used. The space-time tetrahedral element of a moderately thick plate was produced and examined. The advantages of a triangular net, especially those leading to equations uncoupled with respect to then, were conserved.

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