Crack propagation intro

the answers

  1. Concrete is strong in compression.
    You can find more on concrete in the Cracks section.

  2. There are many advantages and disadvantages to building dams. You can find more on this in the Dams section under Opposition to dams.

  3. A material's resistance to cracking is called stress intensity factor. You can find more on this in the Cracks section under Theory.

  4. The ingredients in concrete are cement, water, and aggregate. You can find more on this in the Cracks section under Concrete.

  5. Gravity dams resist the force of the water entirely by their own weight. You can find more on different Dam Types in the Dams section.

  6. The Fish and Game commissioners of Idaho were in favor of breaching dams on the Snake River to save salmon. You can find more on this and many other fascinating current events about dams in Dam News! (in the Dams section).

  7. The simulation shows you stress contours of your model. You can find more on this in the Simulation section.

  8. A tailings dam on Battle Creek, West Virgina failed in the '70's. You can find out more in the Scenarios section on recent dam failures and in Dam News!.