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Elastic properties of materials

Matevž Ocvirk (2014) Elastic properties of materials. Diploma thesis.

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    Abstract

    In the diploma paper a simple press device is developed in order to demonstrate elastic properties of matter in the classroom in an interesting nonstandard way. Linear elasticity described by the Hooke’s law is usually introduced by an experiment, in which a spring or an elastic band is stretched by hanging weights. With the device developed in the diploma paper various objects can be compressed. Precise measurements of the contraction of the object and the force acting on the object can be measured simultaneously in order to demonstrate the validity of the Hooke’s law for compression. The performance of the device is verified by two examples. First, following the example of the experimental problem in the International Physics Olympiad in 2010 the deformation of the transparent foil rolled into a cylindrical shape is measured. As a second example the deformation of the polyurethane foam in a cuboid shape is measured. With suitable modifications of the level of difficulty the content of the diploma paper can be adjusted for use in primary or secondary school.

    Item Type: Thesis (Diploma thesis)
    Keywords: Hooke’s law, elastic deformation, elastic energy, press, elastic foil, bending rigidity
    Number of Pages: 28
    Language of Content: Slovenian
    Mentor / Comentors:
    Mentor / ComentorsIDFunction
    doc. dr. Jurij BajcMentor
    Link to COBISS: http://www.cobiss.si/scripts/cobiss?command=search&base=50126&select=(ID=10132809)
    Institution: University of Ljubljana
    Department: Faculty of Education, Faculty of Mathematics and Physics
    Item ID: 2296
    Date Deposited: 23 Jul 2014 07:48
    Last Modified: 23 Jul 2014 07:48
    URI: http://pefprints.pef.uni-lj.si/id/eprint/2296

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