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Article

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Title

Analytical and Numerical Studies of an Unsymmetrical Sandwich Beam – Bending, Buckling and Free Vibration

Authors

[ 1 ] Instytut Matematyki, Wydział Elektryczny, Politechnika Poznańska | [ E ] pensioner | [ P ] employee

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering

Year of publication

2019

Published in

Engineering Transactions

Journal year: 2019 | Journal volume: vol. 67 | Journal number: no. 4

Article type

scientific article

Publication language

english

Keywords
EN
  • sandwich beams
  • beam deflection
  • critical load
  • free vibration
  • analytical studies
  • FEM studies
Abstract

EN The subject of the paper is an unsymmetrical sandwich beam. The thicknesses and mechanical properties of the beam faces are different. Mathematical model of the beam is formulated based on the classical broken-line hypothesis. The equations of motions of the beam is derived on the ground of the Hamilton’s principle. Bending, buckling and free-vibration are studied in detail for exemplary unsymmetrical structure of the beam. The values of deflection, critical force and natural frequency are determined for the selected beam cases. Moreover, the same examples are computed with the use of two FEM systems, i.e. SolidWorks and ABAQUS, in order to compare the analytical and numerical calculation. The results are presented in Tables and Figures.

Pages (from - to)

491 - 512

DOI

10.24423/EngTrans.1015.20190725

URL

http://et.ippt.gov.pl/index.php/et/article/view/1015/822

License type

CC BY-SA (attribution - share alike)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

at the time of publication

Ministry points / journal

20

Ministry points / journal in years 2017-2021

70

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