3 Replies Latest reply on Apr 29, 2015 6:18 PM by Andrei Popov

    Can anyone suggest which failure stress should consider for this model

    Kirubakaran Ramamurthy

      Currently I am analysing Brake Flange component , Here there are 4 Bolts which acting 106206 N -total. I need to analyse whether is it safe or not.

      I did 2 iteration for ductile material - 350 Mpa Yield Strength.

      1. The Von-Mises Value is 840 Mpa & Principle Stress P3 - 192 Mpa ( Due to compressive Load ),

          

           Here Von Mises value is not within the limit of yield strength, but P3 value is in limit. In this condition I consider von mises value

           So this is not in safe. In Practical this gets crack , so analysed value is right.

      2. I changed the design and analysed the flange for same material.

           Now Von Mises Value - 470 Mpa & P3 - 178 Mpa

       

          

      Here Von Mises value is not within the limit of yield strength, but P3 Value is in limit. In this condition I said von - mises value .

      So this is not in safe. In Practical this is OK.

       

      Kindly give the solution for this model.

       

      Give difference between Von-Mises, Principal Stress P1, P2,  & P3