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Apparatus:
UTM , test specimen, divider, vernier caliper, scale.
Procedure:
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Prepare the test specimen that is steel bar and find its diameter at tree different places and find its man value.
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Mark two points 8" a part of 2 ft long steel bar.
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Insert the bar in jaws for gripping the steel bar and select suitable bar on UTM. Place the steel bar and fix it.
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Start t machine and start applying load.
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There will be gradual increase in length which will be directly proportional to applied load.
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During this load application measure change in length at different load, till the steel bar breaks.
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Find the stress and strain at those points and investigate the law by drawing the graph between stress and strain
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