Youngs modulus

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11 Terms

1
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If something is brittle?

Has no plastic deformation,breaks soon after the elastic deformation

2
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If something is ductile?

Goes past elastic deformation and some if not all plastic deformation

3
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What does the gradient signify?

How stiff the material is

4
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What is the SI unit for Youngs modulus?

Pa(pascals) or NM-2(Newtons per meter squared)

5
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What is the formula for youngs modulus?

Tensile stress/Tensile strain

6
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What does the area under the graph show?

Energy stored

7
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What is the formula for tensile strain?

Change in length/Original length

8
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What is the SI unit for tensile strain?

It has no SI unit

9
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What is the formula for tensile stress?

Force/Cross sectional area

10
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What is the SI unit for tensile stress?

Either Pa or NM-2

11
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What are the stages of deformation?

Elastic deformation - Plastic deformation - Fracture/Breaking point