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Thermo-elastic mismatch in nonhomogeneous beams

Carpinteri, Alberto and Paggi, Marco Thermo-elastic mismatch in nonhomogeneous beams. Journal of Engineering Mathematics, 61 (2-4). pp. 371-384. ISSN 0022-0833 (2008)

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The problem of thermo-elastic stress analysis in multi-layered nonhomogeneous beams is considered. The proposed analytical approach based on the multi-layered beam theory permits to take into account an arbitrary distribution of the Young’s modulus, of the thermal-expansion coefficient, and of the temperature variation along the beam depth. The effect of shear deformability of the interfaces is also carefully analyzed. Useful closed-form solutions for the normal stresses in the layers and for the interface tangential stresses are provided in the case of nonhomogeneous bi- and tri-layered beams. The obtained results show the effectiveness of using functionally graded materials to relieve stress-concentrations due to the thermo-elastic mismatch typical of laminated beams with homogeneous layers.

Item Type: Article
Identification Number: 10.1007/s10665-008-9212-8
Uncontrolled Keywords: Analytical approach; Functionally graded materials; Multi-layered beams; Thermo-elasticity; Thermo-elastic mismatch
Subjects: T Technology > TJ Mechanical engineering and machinery
Research Area: Computer Science and Applications
Depositing User: Prof Marco Paggi
Date Deposited: 29 Nov 2013 11:34
Last Modified: 09 Oct 2014 09:20
URI: http://eprints.imtlucca.it/id/eprint/1967

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