Cracking dams intro


Advanced level intro
Dams
Cracks
Case Histories
Scenarios
Simulation
quiz
search
Glossary
Site Map
Help



Understanding your results

Remember, your cracks had to start on the exterior boundary.

Variations to try:

  • structure with and without a crack
  • structure with one crack or multiple cracks
  • different loads: only the water load, only the weight load, or both
  • different attachments at the foundation: attach the whole bottom edge or just the bottom corners
  • Here are some examples of loading that will make a crack grow:

    apply load that pulls the crack open apply load that pushes the crack open.

    Why did the crack grow?

    Think about the load that you applied to the structure.

    What can I learn from the stress contours?

    Stress contours may have a couple different colors in one frame, and the shape and/or colors of the contour may change between frames as the crack(s) advance. Notice where the the blues or the greens are -- these are the places where the structure feels the most force -- maybe near your foundation or at the crack tips.

    You might notice that the stress contours change from blue to green or green to red as your crack grows. The is because the crack has relieved some of the force on the rest of your structure.



    Only one of my cracks grew. What does this mean?

    If you had more than one crack and only one of them grew, this means that there was only enough energy in the system to propagate one crack. Engineers use simulations like these to recreate how a crack grew or to try to predict how a crack will grow. This information helps them figure out how to repair the crack.


    You have reached the end of the Simulation!

    Please check out one of the other sections by choosing from the side menu or continue on to the quiz.