4th Workshop on Validation

After Shanghai 2011, London 2013 and Munich 2014, the Fourth International Workshop on Validation of Computational Mechanics Models will be held in Zurich, Switzerland, on November 5th, 2019. Keynote Speakers include Linden Harris (Airbus UK), Anna Pandolfi (Politecnico di Milano) and Yakov Ben-Haim (Technion).

The event is free of charge, and a drink reception is included. For organizational reasons please by email.

The Call for Papers for this workshop is open with a submission deadline of May 31st, 2019.

 

Session one:  Credible Models for Engineering Decision-Making

Keynote: The assessment of smarter testing for credibility and maturity
                  Linden Harris, Airbus UK


Session two: Validation of multi-physics models of engineering systems

Keynote: Validation of multiphysics models: from the material scale to the boundary value problem
                 Anna Pandolfi, Politecnico di Milano


Session three: The Future of Experimental Data for Model Trustworthiness

Keynote: As our Island of Knowledge Grows, so Does the Shore of our Ignorance
                 Yakov Ben-Haim, Technion


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Testing the methodology at Empa

The draft validation protocols are being employed on a static panel test at Empa, Switzerland.
Panel test
The validation protocols were deployed on a singly curved skin-stringer-frame assembly in a compression test, using DIC to measure deformation under various load cases and to compare the results to FE-simulations. The panel is part of the fuselage skin from an A340 aircraft.
/documents/1583244/0/Panel_Test_DIC/ce8444ca-7dff-428b-b9bd-285e696d0329?t=1543409299357
The Airbus panel in the compression test machine in front of the DIC system.
Panel preparation

The Airbus panel was brought  to a convenient size of about 1 m2 by waterjet cutting. The ends were potted to allow force introduction through the platen of the testing machine. The geometry of the panel was controlled in order to update the numerical model for simulation. Finally, a self-adhesive speckle pattern was glued onto the outside of the test panel for DIC deformation measurements.

    

Test panel after cutting (left). Two curved frames run across the panel, while five stringers will take compressive load. Potting of the panel ends (right).

   

Check of the geometrical details (left) and application of a self-adhesive speckle pattern (right).