Posted by Duane WI on November 06, 2016 at 12:54:00 from (174.125.243.115):
In Reply to: What a mess! posted by big tee on November 06, 2016 at 05:10:38:
There is a failure phenomena with large bulk storage vessels called thermal ratcheting. Basically the metal shell of a full silo will expand during a warm day when the sun is on it. The material inside settles down slightly. The silo gets cold at night and the shell contracts. It can't because the material inside is now holding it back so the metal stretches to a slightly larger diameter. This happens repeatedly over a few days or weeks and finally the silo just bursts open. Once the bottom of the shell bursts open the vertical structure is gone and it falls over.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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