HigherEd 2.0

This is a good one about static indeterminacy. For these kinds of problems, here is the general strategy:

1. draw FBD and write the equilibrium equations, and identify all the unknowns
2. compare the number of unknowns to the number of equilibrium equations
3. if you have more unknowns than equilibrium equations, you need more equations!
4. write displacement equations (such as )–as many as you need so that you can uniquely solve for all the unknowns
5. solve

Have a look at this, plus the problems we did in class, and enjoy.

 

 Module 8: Static indeterminacy (axial loading): Play Now | Play in Popup | Download