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Energy dissipation in microfluidic beam resonators: Effect of Poisson's ratio

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dc.contributor Massachusetts Institute of Technology. Department of Biological Engineering
dc.contributor Massachusetts Institute of Technology. Department of Mechanical Engineering
dc.contributor Manalis, Scott R.
dc.contributor Burg, Thomas P.
dc.contributor Lee, Jungchul
dc.contributor Manalis, Scott R.
dc.creator Sader, John E.
dc.creator Burg, Thomas P.
dc.creator Lee, Jungchul
dc.creator Manalis, Scott R.
dc.date 2011-10-19T21:41:07Z
dc.date 2011-10-19T21:41:07Z
dc.date 2011-08
dc.date 2011-06
dc.date.accessioned 2023-03-01T18:09:02Z
dc.date.available 2023-03-01T18:09:02Z
dc.identifier 1539-3755
dc.identifier 1550-2376
dc.identifier http://hdl.handle.net/1721.1/66508
dc.identifier Sader, John et al. “Energy dissipation in microfluidic beam resonators: Effect of Poisson’s ratio.” Physical Review E 84 (2011): n. pag. Web. 19 Oct. 2011. © 2011 American Physical Society
dc.identifier https://orcid.org/0000-0001-5223-9433
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/278938
dc.description Dissipation of mechanical energy underlies the sensitivity of many nanomechanical devices, with environmental effects often having a significant effect. One case of practical relevance is the interaction of elastic beam resonators with fluid, which is known to dramatically increase energy dissipation. Recently, we investigated energy dissipation in a different class of elastic beam resonator that embeds a microfluidic channel in its interior. In this paper, we examine the effect of the beam material Poisson ratio on these devices and discover that it can strongly affect energy dissipation—this is in direct contrast to conventional cantilever beams immersed in fluid. Increasing the Poisson ratio in these microfluidic devices is found to decrease energy dissipation, with the incompressible material limit providing minimum energy dissipation. Our paper establishes that, in this limit, placement of the fluid channel away from the beam neutral axis has negligible effect on energy dissipation in many cases of practical interest. The physical implications of these findings are discussed, and a detailed comparison with available experimental results is provided.
dc.description Institute of Collaborative Biotechnologies (Contract No. W911NF-09-D-0001)
dc.description National Institutes of Health (U.S.). Cell Decision Process Center (Grant No. P50-GM68762)
dc.format application/pdf
dc.language en_US
dc.publisher American Physical Society
dc.relation http://dx.doi.org/10.1103/PhysRevE.84.026304
dc.relation Physical Review E
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.source APS
dc.title Energy dissipation in microfluidic beam resonators: Effect of Poisson's ratio
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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