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How to model screws with high precision?

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3klk

Mechanical
Apr 4, 2012
1
Hello to all
I use Abaqus recently, and I'm modeling a vice gripping piece for machine tools(i put in attached a picture of the problem). I have problems in correctly modeling the assembly screws. I need high precision because the result I get is a deformation of 2 cents, while in reality the measured strain is 7 cents. I tried to use the command 'bolt load' but I can not get to finish the simulation.
Is there anyone who can explain me how can I fix it?
Thanks to all
 
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