Youngs Modulus of a Steel Wire - by James Wilson

4.5. five-year-olds Modulus of a Steel Wire. Objective:

mob Wilson. 2011.

To perform a practical experiment in which a number of tests will be performed measuring how much a steel wire extends as increasing force is employ to it. Using the results/data obtained from these tests, comparisons and reckonings will be made in table and graph form. These results will enable a calculation of Youngs Modulus. Using my own output of Youngs Modulus, further research will be endured into how this fancy relates to: Hooks law, Elastic limit, Ductile and brittle behaviour, Elastic and plastic behaviour of materials.

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 sign (a): turn representing Searls apparatus.

figure (b): approximate up of measuring components on the apparatus. 2

Apparatus: The tool utilise to perform the action of stretching the steel wire is a metallic device that is based on Searls apparatus, figure (a), which consists of: Two hanger structures to each one suspended from a ceiling by equal length steel wires. Although these hangers are attached to each other mechanically, they operate independently as separate structures, whilst withal working in unison creating a tool opened of gathering sufficient data to calculate Youngs Modulus.



The tools capability to do this relies on a measuring device in the form of a motorbike and scale of measurement fitted to one of the hangers. The scale on this wheel contains measurements divided up into 50 graduations, each being 0.01 millimetre, therefore one drop revolution of the wheel moves the spindle a distance of 0.5 millimetres. In addition, residing next to the wheel and scale is a measuring vernier, modify the device to read measurements to within 0.001 millimetre. The purpose of the wheel and scale is to create a raising and lowering action of a bolt that manipulates a spirit level fitted to the top of the device between the two hangers. Each hanger has the ability to endure a desired amount of weight, which with increasing weight will puddle further stretching of the...If you want to get a large essay, order it on our website: Orderessay



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