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6692 |
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Wednesday, September 16, 2020, Virtueller Raum 1 10:00 AM Konstruktion und Festigkeit I |
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Validation of Welding Structure Simulations |
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Ralf Polzin / Technologie-Institut für Metall und Engineering gGmbH (TIME), Deutschland Tobias Girresser * / Technologie-Institut für Metall & Engineering GmbH (TIME), Deutschland John Goldak/ Goldak Technologies Inc, Kanada Tobias Loose/ DynaWeld GmbH & Co. KG, Deutschland |
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Welding structure simulation is a numerical method that predicts distortions, residual stresses and microstructure in welded structures. It enables design engineers to optimize the design and the manufacturing process for the strength and usability of the assembly. To trust the simulation software, it should be validated to demonstrate that the predictions provide a best fit with the reality. This requires that measured physical experiment data and the data predicted by the numerical analysis be compared. This requires same process, clamping and boundary condition in physical and numerical experiment as well as precise synchronization of the clock time between measurement and simulation. This paper presents transient results of several validation experiments with the scope on deformation. residual stress, strain, temperature and microstructure. Because the analysis is nonlinear, it is important that the transient data be compared. |