00:01
Determine the stress acting determine the maximum bending stress in the beam.
00:07
So we'd like to find our maximum bending stress in the beam and to sketch a three -dimensional view of the beam.
00:19
So if you'd like to find our maximum our maximum bending stress, it's going to be what we can do is calculate at different points.
00:32
So if we have our beam and it might look something like, like so, at this point a, and this is looking from our side view, this is our point a, we can have, we also told that m is equal to 8 kilo -neuten per meter, kilnoon meters.
00:54
So we can use our bending equation.
00:57
R divided by y is equal to m divided by i, and that's equal to e divided by r.
01:03
So at our point a, then our sigma is equal to m, y, a, divided by our moment of inertia, i.
01:14
But our moment of inertia, i, is equal to our i1 plus a1, y1 squared, plus i2, plus i3, plus a3, y3 squared.
01:30
And if we plug in all of our values, we can, let's just plug in our values and solve...