Stress Flashcards by Brett Owers

Q

What is Stress?

A

A force applied to an object per cross-sectional area.

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Q

What is the unit for Stress?

A

Pa (Pascals)

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Q

What is the equation for Stress?

A

σ=F/A

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Q

What does each variable in the shown equation represent?

A

F = Force (Newtons), A = Area (m2)

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Q

What types of Stress is there?

A

Compressive, Tensile and Shear

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Q

What type of stress is shown in this image

A

Shear

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Q

How many stress points are in this image?

A

2

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Q

What type of stress is shown in this image

A

Tensile

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Q

What type of stress is shown in this image

A

Compressive

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Q

What is compressive stress?

A

forces that push or squash a material.

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Q

What does “1” represent in this graph?

A

Elastic deformation

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Q

What does “2” represent in this graph?

A

Yield strength

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Q

What does “3” represent in this graph?

A

Ultimate strength

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Q

What does “4” represent in this graph?

A

Strain hardening

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Q

What does “5” represent in this graph?

A

Necking

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Q

What does “6” represent in this graph?

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A

Breaking point

Q

What does “7” represent in this graph?

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A

Plastic deformation