It would probably be easier for me to post an actual pic. I know that the main beams across are not necessarily the weakest points, but I just wanted to see what the max load would be if I did not have any supports. Here are two screenshots:
The main beam is split into three sections...
No doubt about the safety factor. There normally are flaws in the beams and one needs to take into consideration any points of higher stress such as bolts and whatnot. The beam itself is actually supported at four points making the longest section 12 ft, but I wanted to see what the beam could...
Hmmm...with equation 1 I get that a 30 ft beam (8" X 12'') can hold about 6200 lbs. I know LVL is strong, but that seems impossible with a span of 30 feet.
Sorry it took so long to get back...been kinda hectic here.
Anyways, I'm simply looking for the maximum load a beam can take before failure. The beam is horizontal and supported on each end, like a bridge. Let's call it a bridge and say I'm trying to figure out the heaviest truck that could...
Hello,
I'm looking for a formula to determine the max load on a piece of Laminated Veneer Lumber (LVL) supported at each end. Although I've calculated the load on each component of bridges a thousand times way back in my Statics class, nobody ever showed us how to find the max allowable load...
My professor has given us the problem and solution here; http://mielsvr1.ecs.umass.edu/mie310/13-176.JPG however, he has left out steps. I want to figure out as much on my own as possible, but don't really understand this one.
One of the equations written is W (sub ab) = 0, W (sub bc) = 4...
I tried to post this before, but then when I hit post I was forced to see 5 other posts and it doesn't look like my post got put up, but I apologize if it did and I can't find it. Anyways, here we go again:
This assignment it kind of important, especially as the class is coming to an end...
Ah...how did I not think of that? I did try it, but came up with a negative answer. It seems like it should work out, so could somebody point out where I messed up?
Here's where I'm stuck on #3 as well. When I substitute 9 back in for x I get 0/4. Any hints?
The thing that is throwing me off is that x is in both variables. Do I just integrate them seperately and multiply them. i.e. (x^2)/2 times e^-x? I know I can't bring x or e^-x out to the front of the integrand like a constant.
Also, how are you guys typing interals and stuff out?
I'm having some trouble on all of these problems.
For the first one, I don't know how to do it because of the two variables (although they're both the same).
For #2, I figure to use the disk method and set the integral from 5 to 13. The only problem is when I substitute 5 and 13 in...
Thanks Dick.
Ice, we have done differentital equations. She said we could do this any way we wanted, and this way I really knew how to do and I'm still a little unfamiliar with DEs.
I'm in Calc II for the summer, but for some reason my teacher gave us a take-home test on exponential growth. She said we could work together and such, but the class didn't have time, so I was wondering if somebody could check it for me. It seems pretty straight to me, but it's a large chunk...
I've kind of got this approximating the area of a plane region down, but I don't know what i really is. The book calls it the "index of summation", which might as well be a foreign language.
On a similar note, what is c sub i?
Thanks.