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Thus, the momentum integral equation may be simplified to: |
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Rathole Collapse Impact Force (cont.) |
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where `w' is used to represent the z, or vertical, component of velocity. The control volume for this analysis includes the entire beam. At the top surface of the control volume , since the directions of and are 180o apart. Thus: |
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The Jenike & Johanson Report indicates a rathole collapse load of 106,000lbf which will be used for the finite element analysis. |