history of sim4w

history of sim4w

We design welded products since many years
But systematic approach means understanding the required basics and application of standards
These are my personal milestones :
  • 1991 : working as a student at SIG in Switzerland :
    => manufacturing of welded train-pivot frames
    I achieved very good practice in creating weld drawings, weld planning and managing of weld manufacturing
  • 1996-2005: Studying many books and having many discussions with other FEM-engineers :
    "Simulation of welded products is not a single-solution method"
  • 2006 working group "welding" at Ansys user club Germany: ( www.auc-ev.de )
    Collecting and discussing the guidelines we use:
    - DIN 15018 (tower cranes)
    - ASME3 + KTA (nuclear)
    - IIW fatique recommendations XIII-1965-03/XV-1127-03 ( http://www.iiwelding.org )
    - FKM 183 (rather unwelded materials than welded, many copies from IIW)
    - Eurocodes: EC3 / EC7
    - GL-code (for ships) ( www.gl-group.com )
    - DIN EN 13445 (pressure vessels)
    - There exist many more, depending on your products and country... (guidelines of customer and producer can be different)
    - In these times of global markets the codes in Europe are getting merged, also the BS/USA-codes -> prefer ISO codes
  • 2006-2011 using (und understanding) the different guidelines => finding the easiest way for different products
  • 2011: presentation at the ANSYS Usermeeting: Simulation of welded products
  • 2012: remaining challenges :
    - Limitation of shape distortions and residual stresses (just coming out of the research level)
    - (Best) economic simulations of welded products (even on complex models)
    - CAD+FEM-model sharing => getting the same results => who is faster? and why?
    sim4w-home

    ( last modification 20.oct.2012 )