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  1. 123nob

    How to calculate the characteristics of this compression spring ?

    Hi; I know my approach is poor and dirt. I just want an easy yet simple method with minimal components. When I google that tension control device I get results such as: magneto rheological brake or nonlinear adaptive backstepping control scheme. But is their any easy and clean way to simplify...
  2. 123nob

    How to calculate the characteristics of this compression spring ?

    Hello; I have as shown in the picture, a rope (in green), this rope is located between a support A and a support B. The Support A doesn't move and attached to the ground. The support B apply a force F1 against the rope, this force is made by a helical compression spring. Because there is a...
  3. 123nob

    Approximation of maximum pull before failure of an iron bar

    Hello [smile]; I have searched and there is tons of references related to piles. According to jayrod12, this can be considered as a pile subjected to lateral load. So because the equations that determines the maximum lateral load depends on the size and ground type, and because there is...
  4. 123nob

    How to calculate bending moment and shear of this beam ?

    Hello I beam is well documented online, but what about a beam that have two flat bars perpendiculars into the middle and form a "plus sign" beam ? is their any manual that explain how to obtain its moment of inertia or bending moment like I beams ans H beams ? Thank You
  5. 123nob

    Approximation of maximum pull before failure of an iron bar

    Thank you for your answers. I am googling so I will get back if still no clue. Bye [smile2]
  6. 123nob

    Approximation of maximum pull before failure of an iron bar

    Hello; Kindly help me to start the resolution of this problem, I have searched for many similar problems related to anchors but most of them calculates the vertical pull-out force which is not the case here. So lets start. We have a flat ground surface made of rock, we already made a hole...

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