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In Situ Measurements of Interfacial Contact Pressure During Impact Hammer Tests

Seeger B, Butaud P, Baloglu MV, Du F, Brake M, Schwingshackl C (2018)

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Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2018

Publisher: Springer

Pages Range: 225 - 236

Conference Proceedings Title: Nonlinear Dynamics, Volume 1; Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018

Event location: Orlando, FL

ISBN: 978-3-319-74280-9

URI: https://link.springer.com/chapter/10.1007/978-3-319-74280-9_24

DOI: 10.1007/978-3-319-74280-9_24

Abstract

Understanding the nonlinear dynamical contact interactions within joints is crucial for understanding and predicting the dynamics of assembled structures. In spite of this, most experimental investigations focused on the global vibration behavior, since the local interactions at the interface cannot be observed with standard techniques. In the present work, an advance contact pressure measurement system is used in a unique way to analyze, in situ, the interfacial contact pressures and the contact area inside a bolted lap joint connecting two beams (Brake-Reuß beam). An important feature of the measurement system is that it is designed for frequency ranges including the typical vibration frequency of the Brake-Reuß beam’s first eigenmode, and thus permits measurement under dynamic excitation. The dynamics of the contact pressures were investigated with different bolt torque levels and with different excitation levels. The experiments found that significant variations of the contact state occurred and that the contact pressure measurement system could adequately resolve this effect. The influence of the measurement system itself on the global vibration response of the Brake-Reuß beam was shown to be tolerable.

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How to cite

APA:

Seeger, B., Butaud, P., Baloglu, M.V., Du, F., Brake, M., & Schwingshackl, C. (2018). In Situ Measurements of Interfacial Contact Pressure During Impact Hammer Tests. In Gaetan Kerschen (Eds.), Nonlinear Dynamics, Volume 1; Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018 (pp. 225 - 236). Orlando, FL, US: Springer.

MLA:

Seeger, Benjamin, et al. "In Situ Measurements of Interfacial Contact Pressure During Impact Hammer Tests." Proceedings of the IMAC 2018, Orlando, FL Ed. Gaetan Kerschen, Springer, 2018. 225 - 236.

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