7 Replies Latest reply on Aug 21, 2009 3:55 PM by Jose Eduardo Fernandes de Camargo

    singularity & "hot spots" , how to deal with it?

    Paul Fichman

      I checked a simple tube with variable cross section for bending .

      hand calculation states a max. stress of 312 MPa. the simulation show a max. stress of 1100 MPa.

      the high stress is a "hot spot" format. if I refine the mesh, the stress result will go higher. in fact , a very coarse mesh gives closer results to reality.

       

      how do I tackle these "hot spots"? it makes the whole simulation useless.