Timing What the students do
10 mins Introduction. Recap of forces and stresses. Watch demo of simulation
20 mins Get students to load the material for one cycle and save the data. Convert this data to e−lnp in Excel.
10 mins Discuss what this graph tells us about the stiffness of the material as it is being loaded.
10 mins Get students to perform many cycles of compression. Ask them to comment on how the stiffness changes qualitatively.