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- Testing and Modeling of Friction and Slip in Mechanical Interfaces: State of the Art and Perspectives for the Next Decade.
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Testing and Modeling of Friction and Slip in Mechanical Interfaces: State of the Art and Perspectives for the Next Decade.
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Experiments and physics-based modeling efforts both show that the features within a jointed interface can have an outsized influence on the nonlinear dynamics of a large-scale structure. The interfacial features, including asperities and meso-scale topology, are often six to ten orders of magnitude smaller in scale than the structure itself, yet can significantly change the natural frequencies and damping of a structure and can lead to the premature failure due to wear if not properly designed. A significant amount of recent research has been invested in understanding and predicting the nonlinear dynamics of structures with jointed interfaces; however, there are many challenges that still remain before accurate predictions of a jointed structure's nonlinear dynamics and wear properties becomes accessible to design engineers. This article is a reflection of the outcomes of the 2023 International Workshop on the Mechanics of Jointed Structures in which the state of the art of joints modeling was assessed and future directions for research on jointed structures were identified. As such, this paper makes several recommendations for new research thrusts to improve the understanding of jointed structures in addition to highlighting the current state of the art and recent advances in modeling and experimentally characterizing jointed structures.
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About: M.R.W. Brake
Department of Mechanical Engineering, William Marsh Rice University, Houston, TX 77005, USA
About: M.S. Allen
Mechanical Engineering Department, Brigham Young University, Provo, UT 84602, USA
About: D.D. Quinn
Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
About: D.R. Roettgen
Structural Dynamics Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
About: D. Nowell
Department of Mechanical Engineering, Imperial College London, SW7 2AZ, London, UK