20.1. Review from Strength of Materials

Try these first

1. 1.

   What happens to a straight beam when it is subjected to bending?

   Hint

   Think about how a bow bends.

2. 2.

   What is the neutral axis in a beam?

   Hint

   Remember, it's the point with no force acting.

3. 3.

   What happens to a beam's cross-sections during bending?

   • They remain unchanged
   • They become parabolic
   • They collapse

   Hint

   Think about how materials deform.

4. 4.

   True or False: The neutral axis in a beam experiences the highest stress.

   • True
   • False

   Hint

   Consider where forces act on the beam.

5. 5.

   A simply supported W-section beam is subjected to a uniform load. Calculate the maximum bending moment and identify the location of the neutral axis.

   Hint

   Consider the load's effect over the span.

6. 6.

   A steel beam with a specified yield strength of 50 ksi is tested for flexural strength. Determine its nominal strength using appropriate section modulus and reduction factors.

   Hint

   Check if your section is compact or partially compact.