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Analytical and Numerical Modelling of a Sub- and Supersonic Moving Load Front Along a Rod’s Skin

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Advanced Methods of Continuum Mechanics for Materials and Structures

Part of the book series: Advanced Structured Materials ((STRUCTMAT,volume 60))

Abstract

For both civil and mechanical engineering dynamic loads of structures are a major source of inner material damage. If (fibre) reinforced composite materials are exposed to such dynamic loads a pull-out of the reinforcing elements may occur. This dynamic pull-out of reinforcing elements is characterized by, amongst others, moving boundaries between regions of (partly) damaged and perfect bonding of reinforcement and surrounding matrix. To adequately describe these moving boundaries leads to enormous challenges. Within this contribution a simplified mechanical problem is investigated, which however provides some of the main phenomena of the dynamic pull-out. In detail, the stress and displacement fields within a rod of semi-infinite extent under a distributed load are evaluated. Herein, the front of the constant longitudinal load moves along the rod in longitudinal direction. The investigations are performed both analytically and numerically thus validating the model idealization included in the analytical solution.

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Acknowledgments

The authors Daniel Balzani and Yannick F. Fangye highly appreciate financial support from the institutional strategy “The Synergetic University” at Technische Universität Dresden as part of the DFG Excellence initiative.

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Correspondence to Wolfgang E. Weber .

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Weber, W.E., Fangye, Y.F., Balzani, D., Zastrau, B.W. (2016). Analytical and Numerical Modelling of a Sub- and Supersonic Moving Load Front Along a Rod’s Skin. In: Naumenko, K., Aßmus, M. (eds) Advanced Methods of Continuum Mechanics for Materials and Structures. Advanced Structured Materials, vol 60. Springer, Singapore. https://doi.org/10.1007/978-981-10-0959-4_26

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  • DOI: https://doi.org/10.1007/978-981-10-0959-4_26

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-0958-7

  • Online ISBN: 978-981-10-0959-4

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