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I Are stress and pressure additive?

  1. Mar 18, 2017 #1
    If we have some pressure/stress (say 1 atm) applied to an end of a square rod. Let's say this square face expression this pressure/stress is discretized into 4 squares of equal area. Each each sub-square experience 1 atm or 1/4 atm?
     
  2. jcsd
  3. Mar 18, 2017 #2

    mfb

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    Pressure and stress are "force per area". If the force per area is the same everywhere, you have the same pressure or stress.
     
  4. Mar 18, 2017 #3
    Oh, so each face would be experiencing 1 atm?
     
  5. Mar 18, 2017 #4

    mfb

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    Each point will experience this pressure.
     
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