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3 cards from this section. Quick, good the night before a test.
Define Young's Modulus.
Focus on the definition of stress and strain.
What unit is Young's modulus measured in?
Think about stress and strain units.
What does Young's modulus measure?
Consider the purpose of Young's modulus.
True or False: Young's modulus can measure compressive strength.
Remember how stress is defined.
A concrete beam (Young's modulus = 30 GPa) is supported at both ends and loaded in the middle by a 15 kN force. Calculate the deflection at the center of the beam given it has a length of 4 m and a rectilinear cross-section of 0.25 m².
You will need to calculate the moment of inertia for the rectangular cross-section.
Determine the amount of elongation in a 3 m long copper wire (Young's modulus = 110 GPa) when a force of 4 kN is applied.
Make sure to account for the cross-sectional area in your calculation.
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