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Old 04-15-2013, 05:50 PM   #11
FlyingDutchman
 
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Quote:
Originally Posted by V View Post
from the pics, id say the one with the black rounded arches probably did pretty well.
If you're referring to the green/black one, they didn't construct it within 30 mins, so they were DQ'd and no load tests were done. I think it weighed around 5-600#. That bridge was a hog podge of previous bridges, no engineering behind it, probably would have failed lol Im guessing they would have failed at the plates as they were like 1/32" thick. I designed ours based on a simplified beam (didn't know enough FEA at that point). They were also missing bolts ...


Quote:
Originally Posted by LTb1ow View Post
Any design pics of your bridge? Always find it cool to confirm hand calcs with FEA, granted they both could just be giving the right answer to the wrong question



I'll find more, we also used STAAD.Pro for a 3rd opinion. For the most part, we came up with a rough idea and put it in robot struct and just reiterated and changed things until we came up with something that would meet the criteria. I like ANSYS, granted its 14.5 now, but I just input whatever I want from AutoCAD and go from there and get pretty pictures like the one you posted.


On a side note, did you take the FE ? I know you're an ME so its not quite as big
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