2.2. Elastic Modulus

Try these first

1. 1.

   What is the Young's modulus of aluminum?

   Hint

   Recall the comparison with steel.

2. 2.

   How does aluminum's low elastic modulus affect its use in construction?

   Hint

   Think about materials in structural applications.

3. 3.

   What is the Young's modulus of aluminum?

   • 69 GPa
   • 210 GPa
   • 90 GPa

   Hint

   It's the same as the one discussed when comparing with steel.

4. 4.

   True or false: Aluminum deflects less than steel.

   • True
   • False

   Hint

   Think about how flexibility relates to stiffness.

5. 5.

   Given a structural aluminum beam with a specific length and load, calculate the expected deflection based on its Young's modulus.

   Hint

   Understanding the variables will guide you in applying the formula correctly.

6. 6.

   Discuss the design considerations when selecting aluminum based on its elastic properties for a bridge versus a high-rise building.

   Hint

   Think about what might happen under load in different scenarios.