Naslov
On thermomechanics of multilayered beams

Autori
Barretta, Raffaele ; Čanađija, Marko ; Marotti de Sciarra, Francesco

Izvornik
International Journal of Engineering Science (0020-7225) 155 (2020); 103364, 20

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Multilayered beams ; Nonlocal thermoelasticity ; Laplace transforms ; Size effects ; Nanocomposites ; MEMS/NEMS

Sažetak
In this paper, the mechanical behavior of multilayered small-scale beams in nonisothermal environment is investigated. Scale phenomena are modeled by means of the mathematically well-posed and experimentally consistent stress-driven integral formulation of elasticity. The present research extends the treatment in Barretta, Canadija, Luciano, and de Sciarra confined to elastically homogeneous nanoscopic structures. It is shown that the non-locality leads to a complex coupling between axial and transverse elastic dis- placements. Such a size-dependent phenomenon makes the solution of the relevant non- local thermoelastostatic problem, governed by a system of two ordinary differential equations with ten standard boundary conditions and non-classical constitutive boundary conditions, significantly more involved with respect to treatments in literature. Thus, a novel solution methodology, based on Laplace transforms, is proposed and illustrated by examining simple structural schemes of current applicative interest in Nanomechanics and Nanotechnology.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

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