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  • Users: jacobd
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  1. jacobd

    Very Basic: Euler End Conditions?

    Let me first say I'm by no means an Engineer, however I am involved to a degree in the design process, and in the end everything is stamped by one of our PE's anyway. Now my question: In looking at the Euler formula for determing critical loads in columns, I see that there are several end...
  2. jacobd

    Impulse & force of falling object

    Some time ago I came across an equation for calculating impulse of a falling object, given its mass and how far it falls. the equations were: Velocity: v^2 = 2gH (I'm curious how this was derived) Impulse: J = m(2gH)^1/2 What I was interested in was estimating the forces generated by a...
  3. jacobd

    Analyzing Wall Bracket

    I use simple wall brackets to support piping, etc... that usually consist of a rectangular tube welded between (2)lengths of angle (somewhat like a gusset connection on each side). The other toe of each angle (the one not welded to the tube) is drilled with 2 holes for mounting to the wall with...
  4. jacobd

    Friction Factor of Stainless Tube

    I base most of my fluids system designs from Camerons Hydraulic and Crane Paper #410, neither of them list any data for friction factors in stainless (304,316L) tube. Does anyone have a reference for this info, or gathered any empirical data themselves? I'm mainly interested in numbers for...
  5. jacobd

    Statically Indeterminate?

    Hello all, I've got a beam design issue that I'm fighting with. I'll state the general scenario, then get to my question: I've got a horizontal wide flange beam hanging (bolted) to (2) horizontal sqaure tubes that are 48" on center. The beam extends beyond one connection and has a point...

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