Recent content by laforzadiment

  1. L

    Weld Strength: 6061-T6 Aluminum Forklift Pocket Weld

    Since the item has been manufactured and exists + it has failed, my safety factor would just be 1 to find the value of the load, correct? If i have a 6 inch weld (along the length of the pocket, connecting the bottom to the right side) with a throat of 0.25, I have a throat area of 1.5 in^2...
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    Weld Strength: 6061-T6 Aluminum Forklift Pocket Weld

    Hello again PF I am trying to find the failure load for a 6061-T6 Aluminum forklift pocket weld with 4043 filler. Can I simply multiply the cumulative throat area by the ultimate yield strength of the filler for this value? I never had any formal education on welds, wasn't sure if I'm missing...
  3. L

    Mechanics of Materials Explanation

    Asking an unrelated question in someone else's post is just silly. As is expecting a rolling coin already in contact with the ground to "flip".
  4. L

    The Coanda Effect: Exploring Airflow Over an Airfoil

    It's been a while so forgive me if there are inconsistencies in this but I believe ccrummer is correct. Kutta is based on circulation and if I remember correctly, circulation originates from viscous effects and boundary conditions on the airfoil. This being the case, the flow must bend to create...
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    Moment of Inertia Clarification

    No prob :) it can be difficult to convey the original problem setup only through text.
  6. L

    Moment of Inertia Clarification

    I don't follow. The area is uniform in and out of the page, I follow the same method used for a T or I-Beam just with more components.
  7. L

    Moment of Inertia Clarification

    Ah I gotcha now. Awesome, thanks for the help!
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    Moment of Inertia Clarification

    Thanks for your reply. Ok, so you're saying that I cannot arbitrarilly place the axis and that it must go at the centroid of the mass as a whole? Alright, I'll update my spreadsheet. Consider the left and right end to be fixed in place so any upward uniformly distributed load will exclusively...
  9. L

    Master 3D Modeling with Movable Parts: Create Dynamic Designs with Ease

    SolidWorks has a very fast learning curve if you haven't come across it already. After creating your components seperately you assemble them by constraining their degrees of freedom individually. So if you don't fully contrain your components, you can easily swing parts around axis or joints...
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    Moment of Inertia Clarification

    Hi all. It's been a while since I've taken mechanics of solids, I was hoping I could get some confusion ironed out here. I have a long thin plate with C channels welded along its length, below is a cross sectional view. [PLAIN]http://img375.imageshack.us/img375/6672/channelexcel.jpg [Broken]...
  11. L

    Calculate Div & Curl from V=Kyi-Kxj

    Determine Div & Curl from a given vector field V=Kyi-Kxj How do I format this? It's been a while since I've done this and every divergence and curl example I look up has the format V(x,y,z)={V1(x,y,z);V2(x,y,z);V3(x,y,z)} Should I reformat my V to be V{x,y}={V1(x,y);V2(x,y)}={Ky,-Kx}...
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