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Vibration of axially loaded and partially interacting composite beams
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik.
Luleå tekniska universitet.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik.
2014 (engelsk)Inngår i: International Journal of Structural Stability and Dynamics, ISSN 0219-4554, Vol. 14, nr 1, s. 1350047-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The vibrations of axially loaded composite beams with partial interaction are considered. The equations of motion and the pertaining boundary conditions are derived from Hamilton's principle. Mainly free — but also forced — vibrations are considered. The natural frequencies are calculated as a function of the axial force and the stiffness of the interaction between the layers. The analytical result obtained for the eigenfrequencies of the simply supported beam is taken as a starting point for an approximation of the eigenfrequencies of beams subject to other boundary conditions. The proposed approximation — which has no numerical fitting parameters — is shown to be in good agreement with the exact solutions, especially for the case of a beam clamped at both ends.

sted, utgiver, år, opplag, sider
Singapore: World Scientific, 2014. Vol. 14, nr 1, s. 1350047-
Emneord [en]
Composite beams, partial interaction, natural frequency, axial loading
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-79579DOI: 10.1142/S0219455413500478ISI: 000328902600002OAI: oai:DiVA.org:umu-79579DiVA, id: diva2:643088
Forskningsfinansiär
EU, European Research CouncilTilgjengelig fra: 2013-08-26 Laget: 2013-08-26 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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Grundberg, StaffanGirhammar, Ulf ArneHassan, Osama A. B.

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