2.8. Internal Forces in Beams

Try these first

1. 1.

   What are the three types of internal forces in beams?

   Hint

   Think of the acronym 'ASB'.

2. 2.

   What is the role of a bending moment?

   Hint

   Consider how you bend a stick.

3. 3.

   What are the three main types of internal forces in beams?

   • Axial Forces
   • Shear Forces
   • Torsional Forces
   • Axial Forces
   • Shear Forces
   • Bending Moments
   • Shear Forces
   • Bending Moments
   • Torque

   Hint

   Remember the acronym 'ASB'.

4. 4.

   True or False: Internal forces do not affect the stability of a structure.

   • True
   • False

   Hint

   Consider if a beam can bend or break under load.

5. 5.

   A simply supported beam with a uniform load experiences how internal forces change from end to end. Describe the shear force and bending moment diagrams.

   Hint

   Think about how loads are distributed.

6. 6.

   For a cantilever beam loaded at the free end, calculate the shear force and bending moment at a point. Use specific distances from the fixed support.

   Hint

   Consider equilibrium and the effects of the load along the length.