Recent content by DMT69

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    Tension on bolts in anchor plate on concrete wall

    I have a program I am using that gives the final results (I am trying to emulate the calculation). Changing the distance to the lower bolts and the lower edge both affect the result, so both must be used in the calculation. However the distance to the edge of the plate above the upper bolts...
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    Tension on bolts in anchor plate on concrete wall

    If you imagine a horizontal line across the plate then the moment is around that. Directly out of the wall on top and directly into the wall on the bottom. Alternately imagine a beam attached to the plate sticking straight out of the wall with a weight on the end. The direction of the bending...
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    Tension on bolts in anchor plate on concrete wall

    Hi. I need help calculated the tension on bolts in an anchor plate. The plate is bolted to a concrete wall with four bolts (see the included image). A bending moment acts on the plate, offset a bit up/down. The bending moment acts from up to down so that the upper two bolts are in tension and...
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    Stress in a hollow beam bent laterallly

    The blue beams are welded to the purple pipe. The gray blob in the middle is another beam, much thicker and stronger than the others (so bending in it can be neglected). The purple pipe with the welded blue beams sits (with no attachments or welding) on the gray beam. The spacing is such that...
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    Stress in a hollow beam bent laterallly

    What i meant is that we can disregard bending of the pipe itself. Perhaps I phrased it badly. The pipe is trying to rotate, this is prevented mainly by the front axial stop pushing into the support. The relevant question is if the axial stop will collapse or not from stopping the pipes rotation...
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    Stress in a hollow beam bent laterallly

    Okay thanks. The axial stops are welded to the pipe. The pipe just rests on the support. The axial stops are flush against the support with no gap. In this case the pipe can be considered infinitely stiff, and since the axial stops are welded to the pipe and flush against the support, we...
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    Stress in a hollow beam bent laterallly

    I would like to calculate the maximum stress in a hollow beam being bent laterally. There has been some discussion in my office about the correct way to view the system in question, and so would like some other opinions on the matter. I will include pictures below. In simplified terms, the...
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    Linear first order differential equation with unknown function

    Okay, that was what I was thinking since I do have f(20)=g(20) in all cases. Now if I use, for example, Newton-Cotes to approximate the integral for the different points, it seems that I will have a bad approximation for x=50, with increasingly better ones up to x=500. This seems a little...
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    Linear first order differential equation with unknown function

    Okay, I've been reading up on numerical integration, and I have a fair handle on that part. And I am able to follow how you solved the differential equation. But there is one thing that I am still confused about, and this is maybe more a general misunderstanding on my part for differential...
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    Linear first order differential equation with unknown function

    I was wondering if there is a way to get specific numerical values for the following differential equation: f'(x)+ \frac{1}{x-20}\cdot f(x)=\frac{1}{x-20}\cdot g(x) I have numerical values for g(x) for about 10 different x values. I need to find f(x) numerically for those same values...
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