a novel highly accurate finite-element family
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ID: 129870
2017
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Abstract
A novel Nth order finite element for interior acoustics and structural dynamics is presented, with N arbitrarily large. The element is based upon a three-dimensional extension of the Coons patch technique, which combines high-order Lagrange and Hermite interpolation schemes. Numerical applications are presented, which include the evaluation of the natural frequencies and modes of vibration of (1) air inside a cavity (interior acoustics) and (2) finite-thickness beams and plates (structural dynamics). The numerical results presented are assessed through a comparison with analytical and numerical results. They show that the proposed methodology is highly accurate. The main advantages however are (1) its flexibility in obtaining different level of accuracy (p-convergence) simply by increasing the number of nodes, as one would do for h-convergence, (2) the applicability to arbitrarily complex configurations, and (3) the ability to treat beam- and shell-like structures as three-dimensional small-thickness elements.
| Reference Key |
bernardini2017internationala
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|---|---|
| Authors | ;Giovanni Bernardini;Fabio Cetta;Luigi Morino |
| Journal | shanghai kou qiang yi xue = shanghai journal of stomatology |
| Year | 2017 |
| DOI |
10.1155/2017/7293682
|
| URL | |
| Keywords | Keywords not found |
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