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  1. littlebum2002

    Force required to launch object?

    First of all, we do plan on fixing the fixture for the future, but for all previous instalations, we want to make sure these rods, if they do fail, don't shoot up and hurt someone or something. I'll try to explain this situation the best I can without a free body diagram, but if it doesn;t come...
  2. littlebum2002

    Force required to launch object?

    Well, here's the problem. The first 2 equations involve a spring coefficient and a displacement amount. However, these rods were simply subject to a large amount of tension before they catastrophically failed, releasing all the stored energy into kinetic energy, sending them flying. We don't...
  3. littlebum2002

    Force required to launch object?

    This seems like an easy equation, and I'm pretty sure I've seen it before, but I am having trouble finding the force required to launch an object. Here is the background: We had a rod in tension that failed, sending the rod high into the air. We want to try to restrain the rod in the future, so...
  4. littlebum2002

    Help on loading a model in Mechanica

    OK, we are having some difficulty on what should be an easy problem. We want to find out the effects of a bolt in tension when a force is applied to the piece to which it is attached. The problem is, how do you load a bolt in tension? If you put a force pulling downward on the bolt, it...
  5. littlebum2002

    Help on loading a model in Mechanica

    OK, we are having some difficulty on what should be an easy problem. We want to find out the effects of a bolt in tension when a force is applied to the piece to which it is attached. The problem is, how do you load a bolt in tension? If you put a force pulling downward on the bolt, it...
  6. littlebum2002

    Shell Pairs in mechanica

    I am having a minor issue with Mechanica, and I am hoping someone who has had the same issue can share their experience with me. I have a simple assembly of a solid object sitting on a sheetmetal object. I simplify the sheetmetal part down to a shell pair (not doing so is not an option, the...
  7. littlebum2002

    Brake rotor hardness number and heat treatment

    I am a member of a mini-baja team at the University of Louisiana. We are planning on having our brake rotors machined and heat treated, but we do not know what hardness the rotor should be. If any one has any ideas on what is a good hardness for a brake rotor, or any instructions on...

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