Stress and Strain

What is the unit of stress?

• 
  Newton (N)

• Pascal (Pa)

• 
  Joule (J)

• Meter (m)

What does strain measure?

• Change in area

• Change in length divided by original length

• 
  Force applied to an object

• Stress over time

What does the symbol, Ϭ , stand for?

• axial force

• total deformation

• 
  stress

• the difference over time

What does the symbol, δ , stand for?

• 
  axial force

• total deformation or elongation

• strain

• the change in

Which symbol represents the "Modulus of Elasticity"?

• A

• 
  E

• ε

• L