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cutting pin sizing

  • Thread starter Thread starter stunt88
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stunt88

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Hi, I would like to know how to size a pin in s2375jr stressed to cut with a force of 60kn
 
apart from that it is not the juke box and a minimum of research, effort, defeat would take us.
then if you place a scheme we see how it is bound because we risk talking about a pin planted in the wall and instead it is in a fork.... already one by 2 we have.. . .
 
a pure cutting action t acting on circular section of diameter d generates a tangential voltage that goes:
♪[ \tau=\frac{4•T}{3•A} \]this value must be lower than the admissible voltage of the material.
♪[ \tau,adm=\frac{0,58•Rs}{ks•kd}; ks=1,5; kd=1÷3\\\tau≤\tau,adm \]
 
a pure cutting action t acting on circular section of diameter d generates a tangential voltage that goes:
♪[ \tau=\frac{4•T}{3•A} \]this value must be lower than the admissible voltage of the material.
♪[ \tau,adm=\frac{0,58•Rs}{ks•kd}; ks=1,5; kd=1÷3\\\tau≤\tau,adm \]
i to find the admissible tau divide the admissible sigma by root of 3...is correct however not?
 
only for comparison between civil engineering and mechanics I transmit the formulas we use to calculate traction - cutting bolts.
the formulas are indicated in dm 14-01-2008 (technical standards construction) and are indicated in the square brackets.
according to the above decree the method of calculation of the eligible tensions is no longer allowed. the plastic resources of the material are also used in the calculation of the resistance.
but the actions must be amplified with the relative gamma coefficients. In our case, for example, the sle cut is 4000 kg and the slu design cut is 4000*1.5 = 6000 kg.
if instead the cut in exercise is 6000 kg, the check is made for 6000*1.5 = 9000 kg.
These comparisons are interesting, but, I think, that today students find examples of calculations made with different methods and with different formulas and end up not understanding us any more.
Hello everyone
bulloni359.jpg
 
thanks for the answers...cmq we talk about a pin with free rotation
a pin with free rotation what does it mean?
but is it difficult to put a blessed design?
I put a pin in a plate before.

But I think you're talking about something else.Screenshot_20200522_164510.jpgIf so go qui e qui.
 

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