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Utvärdering av mekanisk provning av fiberförstärkt plast
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2018 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In this work four fiber-reinforced polymers and one polymer were tested with four different mechanical testing methods, namely; vickers harness test, scratch test, fatigue test and tensile stress. The testing methods were evaluated according to their applicability on the materials mentioned. The purpose of the work is to give the reader an insight of what mechanical properties of materials mean and what kinds of properties one can expect from fiber-reinforced polymers. The purpose is also to give the reader a good sense of what can be expected from the methods tested on fiber-reinforced polymers. Vickers harness test was found to be a valid method as long as the surface of the material was neither uneven nor processed. Scratch test was found to be an overall good method but was recommended to be used in combination with scanning electron microscope, or other imaging tool for strong magnification. Processing of surfaces proved to affect the results. Tensile test was proved to give the user a good perception of the properties of the material, as long as the material not was woven. Woven materials found to differ a lot from each other. One conclusion from this result is that woven materials are best to be tested several times. Fatigue test was found to require more preparatory time and calculations to be able to give the user any useful results, the loads used in the project was found to be too light weight. Processed surfaces were found to be hard to examine in a scanning electron microscope.

Place, publisher, year, edition, pages
2018.
Series
TVE-F ; 18008
Keywords [sv]
kompositmaterial, polymer, hållfasthet, mekanisk provning, dragprov, hårdhetsmätning, utmattningstest, utmattningsmätning, reptest
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:uu:diva-356470OAI: oai:DiVA.org:uu-356470DiVA, id: diva2:1235879
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2018-08-31 Created: 2018-07-29 Last updated: 2018-08-31Bibliographically approved

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