PSI - Issue 24

Stefano Porziani et al. / Procedia Structural Integrity 24 (2019) 775–787

785

S. Porziani et Al. / Structural Integrity Procedia 00 (2019) 000–000

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Fig. 8. Stress comparison between morphed geometry and original geometry

In this paper a solver independent numerical procedure to adapt CAE models onto the actual manufactured shape of systems to be simulated so to generate the digital twin of the real product as built, was described. The use of such procedure, based on the use of RBF mesh morphing, was showcased using a test case consisting of a simplified version of a turbine blade calculating the di ff erence between the stress field of the baseline nominal configuration and of the morphed one reproducing the manufactured component. The development of the study demonstrated the e ff ectiveness of the proposed procedure as well as the high accuracy of the projection applied through RBF mesh morphing. The error between the peak equivalent stress of the baseline and morphed configuration was found to be very limited. Adopting such an approach, a numerical means will be developed and made available on the cloud to o ff er CAE services through the Cloudifacturing marketplace according to the software as a service (SaaS) paradigm. Such a cloudified application will enable users to verify the actual geometry after manufacturing, or repairing, and to also qualify through CAE tools and simulations even non compliant parts with a consequent decrease of production costs. The most important conclusion of the presented work is that surface projecting technique based on the use of RBF mesh morphing confirmed to guarantee high accuracy and flexibility in tackling geometrical reconstruction problems providing the capability to significantly reduce the e ff ort if compared to a model reconstruction procedure adopting CAD systems.

6. Acknowledgements

Authors want to thank the project Cloudifacturing which receives funding from the European Unions Horizon 2020 research and innovation programme under Grant Agreement no. 768892.

References

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