DQM FOR VIBRATION ANALYSIS OF COMPOSITE THIN-WALLED CURVED BEAMS

CORTÍNEZ VÍCTOR HUGO; PIOVAN MARCELO TULIO; MACHADO SEBASTIÁN PABLO

JOURNAL OF SOUND AND VIBRATION

Elsevier

Lugar: LONDON, ENGLAND; Año: 2001 vol. 246 p. 551 - 555

0022-460X

Thin-walled curved beams are extensively used in engineering applications when requirements of weight saving are of primary importance. This is especially true when composite materials are used. For the analysis of isotropic thin-walled beams, Vlasov´s theory was applied successfully in several applications. Kang et al.  have shown that the di!erential quadrature method (DQM) gives very accurate results for natural frequencies of horizontally curved thin-walled beams which are modelled by Vlasov´s theory. More recently, Chen applied successfully a variant of the DQM for analyzing the free vibration of straight thin-walled beams made of isotropic materials.