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DC Field | Value | Language |
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dc.contributor.advisor | Brun, Pierre-Thomas | - |
dc.contributor.author | Yee, Kevin | - |
dc.date.accessioned | 2022-08-09T18:35:09Z | - |
dc.date.available | 2022-08-09T18:35:09Z | - |
dc.date.created | 2022-05-19 | - |
dc.date.issued | 2022-08-09 | - |
dc.identifier.uri | http://arks.princeton.edu/ark:/88435/dsp01wh246w34w | - |
dc.description.abstract | Granular beams are a composite material consisting of a membrane filled with particles. Composite materials are a unique type of material in which constituent materials are crudely combined to form a product whose physical properties are different than that of the original constituent materials. Unlike other combinations of materials, the constituents are not chemically bonded or atomically intertwined; therefore, composite materials are often cheaper and easier to produce. Such is the case for granular beams. Liquid silicone rubber is poured over a mold consisting of a length of pipe and left to harden. This rubber membrane is filled with particles; these are items of any shape or size and will give the beam its characteristic rigidity. The ends of the membrane are plugged and sealed, and a pump attached to one end to extract or inject air into the interior of the granular beam. Withdrawing air from the beam causes its particles to pack tightly into a certain configuration which gives the beam its structural rigidity. In my research, I conducted 3-point bend tests of these granular beams, changing their cross-sectional area, particle size and shape, and internal pressure to see how these changes affected the beam’s rigidity. Given this data, I derived a formula for the rigidity of a granular beam, given by the rigidity metric of shear modulus, as a function of a constant multiplied by the beam’s internal pressure and the cross-sectional area, with the shape of the particles contributing to the value of the constant. At the end, I give some potential directions future research could take, along with some applications. | en_US |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en_US |
dc.title | Granular Beams | en_US |
dc.type | Princeton University Senior Theses | |
pu.date.classyear | 2022 | en_US |
pu.department | Chemical and Biological Engineering | en_US |
pu.pdf.coverpage | SeniorThesisCoverPage | |
pu.contributor.authorid | 920106966 | |
pu.certificate | Materials Science and Engineering Program | en_US |
pu.mudd.walkin | No | en_US |
Appears in Collections: | Chemical and Biological Engineering, 1931-2023 |
Files in This Item:
File | Description | Size | Format | |
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YEE-KEVIN-THESIS.pdf | 10.5 MB | Adobe PDF | Request a copy |
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