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ptc-6769521-Visitor
1-Visitor
Sep 14, 2007 11:15 AM UTC
Question

mechanical - when will we have plastic material analysis

Does any body know IF PTC is thinking to add non-linear material properties (plastic deformation analysis - hardening) to pro/mechanical in future relases?. Thanks.

    2 replies

    ptc-11380591-Visitor
    1-Visitor
    Sep 14, 2007 5:38 PM UTC
    I think Wildfire 4.0 is suppose to be able to do this. I think in Wildfire 3.0 it is also available the option is called large deformation. Someone correct me if I am wrong here.
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      ptc-6769521-VisitorAuthor
      1-Visitor
      Sep 17, 2007 8:38 AM UTC
      NO, in wildfire 4.0 they are adding “hyperelastic material� capabilities that mean: “A hyperelastic or Green elastic material is an ideally elastic material for which the stress-strain relationship derives from a strain energy density function. The hyperelastic material is a special case of a Cauchy elastic material. The behavior of unfilled, vulcanized elastomers often conforms closely to the hyperelastic ideal�, so you CANNOT model a strain hardening process such a “plastic deformation� in steel, being this last point the base of my question. For more information about the new hyperelastic analysis (non-lineal material) please see: http://www.ptc.com/appserver/wcms/relnotes/note.jsp?&im_dbkey=50946&icg_dbkey=826 There are two common mathematical descriptions of the work hardening phenomenon: Hollomon's equation is a power law relationship between the stress and the amount of plastic strain εp. Ludwik's equation is similar but includes the yield stress σy.
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