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  1. dpadler1

    Shuttle Disaster

    JimMetalsCeramics, Could I still get a copy? Sorry so late, forgot to mark the thread. dpadler1@yahoo.com
  2. dpadler1

    FEA Sofware Reccomendation

    I have been pretty happy with Algor after about a year. It has a good user interface and imports/meshes Solidworks pretty well. Looked at Cosmos also, beware that for more advanced analysis (can't remember details but I think nonlinear materials and dynamic response) you have to go into a...
  3. dpadler1

    FEA Model versus Actual Results

    Agree with Brad, clamping is often the weak link, but I think someone above modeled with little effect. Also doesn't explain the simply supported results. However there are some potential issues in the simply supported results depeding how its done. At this point these seem the likely...
  4. dpadler1

    FEA Model versus Actual Results

    A lot of good discussion here, a few points to consider. The force measurement could easily be in error depending what you are using to measure it. A typical load cell might have 0.1% accuracy, so a 5000 lb capacity load cell is only accurate to +/- 5lb. What are the specs on the Instron? You...
  5. dpadler1

    Shuttle Disaster

    >The original shuttle design did not reflect any proper and competent calculation of mechanical transients. > The failure to properly calculate the transient loads is a 70 to 100% error Some pretty serious generalizations/accusations here. Any evidence?
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