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A non-destructive testing method for joints by the measurement of the energy dissipation

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Abstract

The multi-material mix used nowadays requires several joints to establish a durable connection. It is necessary to test the joints without harming the parts to ensure the safety of the whole structure. Therefore, a new approach for a non-destructive testing method is presented and validated in this paper. The aim is to establish the testing routine as a fast and easy alternative to the few known non-destructive testing procedures. The approach measures the dissipation of energy by detecting the propagated waves on the surfaces of the joining partners next to the joint. After a short description and a theoretical insight in wave propagation, the experimental results will be substantiated by simulated findings. A bolted connection was chosen in the experiments due to the possibility to easily apply and check different torque moments. The simulation model was adapted and tested for different applied contact pressures. The general results show a detectable loss of energy that can be linked to different torque moments. Different effects are visible in the simulation and the experiments and will be described. The findings will be discussed and an short outlook will be given. The aim of proving the concept via experimental and simulated results was reached.

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Acknowledgements

The experiments were performed on the SHPB provided by the chair of concrete structures. Thanks to research associate Tino KüHn for the help and discussions during and after the experiments. The simulations were calculated on the Bull HPC-Cluster of the ZIH at the TU Dresden. Special thanks for the generous supply of processing power.

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  1. Technische Universität Dresden, Dresden, Germany

    Alexander Wolf, Remi Lafarge & Alexander Brosius

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  1. Alexander Wolf
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  2. Remi Lafarge
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  3. Alexander Brosius
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Correspondence to Alexander Wolf.

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Wolf, A., Lafarge, R. & Brosius, A. A non-destructive testing method for joints by the measurement of the energy dissipation. Prod. Eng. Res. Devel. 13, 99–106 (2019). https://doi.org/10.1007/s11740-018-0860-x

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  • DOI: https://doi.org/10.1007/s11740-018-0860-x

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