Questions tagged [crushing]

Questions about the equipment and machinery used for crushing materials and objects. Also about the compression forces that result in crushing, either by deliberate mechanical means or by natural means such as pressure, gravity, build up of natural materials, etc. in order to engineer against them.

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Why don't massive industrial shredders shred themselves?

With the huge metal shredders that can shred an entire car or a bus, they can shred parts like the axle and engine which are large solid chunks of metal, just like the massive spinning shredder blades. So why does the car get shredded and not the…
jhabbott
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Minimum drum wall thickness when rope wrapped around it

I need to design a hollow drum that holds steel wire rope under tension. The wire rope gets pulled from both ends with a force of 200kN, it is wrapped around the drum 5 times. The outer diameter needs to be 1m and I was thinking of using S355 for…
David
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What is the smallest grain size achievable using mechanical methods?

What is the smallest grain size achievable (both theoretical and practical) using mechanical methods to crush a fracturable mineral composed primarily of a single molecular species? Example minerals include: calcium carbonate minerals such as…
OneMug
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how does thickness affect the maximum crushing strength and modulus of rupture of wood?

I have modulus of rupture (MOR) and maximum crushing strength of various species of wood. I am trying to understand how the thickness of wood a wood beam laid flat on the ground would affect both modulus of rupture and crushing strength. The…
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multiplying up human compression power!

I need help figuring out the most efficient way (NOT electronically) to manually compress plastic in a small confined space. I was thinking there were small compression shocks that would help to triple my human body force but have been unsuccessful…